Home / 781,512.42-1,078,532.62-437,345.44

Finding the Fourth Proportional to 781,512.42, 1,078,532.62 and 437,345.44

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Solution

The fourth proportional to 781,512.42, 1,078,532.62 and 437,345.44 is: 603,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,512.42 : 1,078,532.62 = 437,345.44 : x
  2. Step 2: Convert to fraction form
    781,512.42/1,078,532.62 = 437,345.44/x
  3. Step 3: Cross multiply
    781,512.42x = 1,078,532.62 × 437,345.44
  4. Step 4: Simplify right side
    781,512.42x = 471,691,323,248.25
  5. Step 5: Solve for x
    x = 471,691,323,248.25/781,512.42
  6. Step 6: Final answer
    x = 603,562.16

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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.