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Finding the Fourth Proportional to 724,399.22, 999,652.52 and 397,710.60

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Solution

The fourth proportional to 724,399.22, 999,652.52 and 397,710.60 is: 548,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,399.22 : 999,652.52 = 397,710.60 : x
  2. Step 2: Convert to fraction form
    724,399.22/999,652.52 = 397,710.60/x
  3. Step 3: Cross multiply
    724,399.22x = 999,652.52 × 397,710.60
  4. Step 4: Simplify right side
    724,399.22x = 397,572,403,520.71
  5. Step 5: Solve for x
    x = 397,572,403,520.71/724,399.22
  6. Step 6: Final answer
    x = 548,830.52

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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.