Home / 990,009.20-1,366,213.26-537,300.20

Finding the Fourth Proportional to 990,009.20, 1,366,213.26 and 537,300.20

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Solution

The fourth proportional to 990,009.20, 1,366,213.26 and 537,300.20 is: 741,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,009.20 : 1,366,213.26 = 537,300.20 : x
  2. Step 2: Convert to fraction form
    990,009.20/1,366,213.26 = 537,300.20/x
  3. Step 3: Cross multiply
    990,009.20x = 1,366,213.26 × 537,300.20
  4. Step 4: Simplify right side
    990,009.20x = 734,066,661,256.19
  5. Step 5: Solve for x
    x = 734,066,661,256.19/990,009.20
  6. Step 6: Final answer
    x = 741,474.58

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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.