Home / 781,454.16-1,078,354.56-437,230.32

Finding the Fourth Proportional to 781,454.16, 1,078,354.56 and 437,230.32

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Solution

The fourth proportional to 781,454.16, 1,078,354.56 and 437,230.32 is: 603,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,454.16 : 1,078,354.56 = 437,230.32 : x
  2. Step 2: Convert to fraction form
    781,454.16/1,078,354.56 = 437,230.32/x
  3. Step 3: Cross multiply
    781,454.16x = 1,078,354.56 × 437,230.32
  4. Step 4: Simplify right side
    781,454.16x = 471,489,309,342.26
  5. Step 5: Solve for x
    x = 471,489,309,342.26/781,454.16
  6. Step 6: Final answer
    x = 603,348.65

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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.