Home / 990,009.77-1,366,214.04-537,300.77

Finding the Fourth Proportional to 990,009.77, 1,366,214.04 and 537,300.77

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Solution

The fourth proportional to 990,009.77, 1,366,214.04 and 537,300.77 is: 741,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,009.77 : 1,366,214.04 = 537,300.77 : x
  2. Step 2: Convert to fraction form
    990,009.77/1,366,214.04 = 537,300.77/x
  3. Step 3: Cross multiply
    990,009.77x = 1,366,214.04 × 537,300.77
  4. Step 4: Simplify right side
    990,009.77x = 734,067,846,159.24
  5. Step 5: Solve for x
    x = 734,067,846,159.24/990,009.77
  6. Step 6: Final answer
    x = 741,475.36

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.