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Finding the Fourth Proportional to 558,327.60, 837,491.40 and 432,356.40

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Solution

The fourth proportional to 558,327.60, 837,491.40 and 432,356.40 is: 648,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,327.60 : 837,491.40 = 432,356.40 : x
  2. Step 2: Convert to fraction form
    558,327.60/837,491.40 = 432,356.40/x
  3. Step 3: Cross multiply
    558,327.60x = 837,491.40 × 432,356.40
  4. Step 4: Simplify right side
    558,327.60x = 362,094,766,734.96
  5. Step 5: Solve for x
    x = 362,094,766,734.96/558,327.60
  6. Step 6: Final answer
    x = 648,534.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.