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Finding the Fourth Proportional to 534,785.60, 738,339.68 and 344,130.32

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Solution

The fourth proportional to 534,785.60, 738,339.68 and 344,130.32 is: 475,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,785.60 : 738,339.68 = 344,130.32 : x
  2. Step 2: Convert to fraction form
    534,785.60/738,339.68 = 344,130.32/x
  3. Step 3: Cross multiply
    534,785.60x = 738,339.68 × 344,130.32
  4. Step 4: Simplify right side
    534,785.60x = 254,085,070,347.10
  5. Step 5: Solve for x
    x = 254,085,070,347.10/534,785.60
  6. Step 6: Final answer
    x = 475,115.77

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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.