Home / 990,103.39-1,366,339.21-537,394.39

Finding the Fourth Proportional to 990,103.39, 1,366,339.21 and 537,394.39

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Solution

The fourth proportional to 990,103.39, 1,366,339.21 and 537,394.39 is: 741,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,103.39 : 1,366,339.21 = 537,394.39 : x
  2. Step 2: Convert to fraction form
    990,103.39/1,366,339.21 = 537,394.39/x
  3. Step 3: Cross multiply
    990,103.39x = 1,366,339.21 × 537,394.39
  4. Step 4: Simplify right side
    990,103.39x = 734,263,026,291.03
  5. Step 5: Solve for x
    x = 734,263,026,291.03/990,103.39
  6. Step 6: Final answer
    x = 741,602.38

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Double scale
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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.