Home / 724,575.42-999,867.82-402,285.43

Finding the Fourth Proportional to 724,575.42, 999,867.82 and 402,285.43

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Solution

The fourth proportional to 724,575.42, 999,867.82 and 402,285.43 is: 555,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,575.42 : 999,867.82 = 402,285.43 : x
  2. Step 2: Convert to fraction form
    724,575.42/999,867.82 = 402,285.43/x
  3. Step 3: Cross multiply
    724,575.42x = 999,867.82 × 402,285.43
  4. Step 4: Simplify right side
    724,575.42x = 402,232,252,406.48
  5. Step 5: Solve for x
    x = 402,232,252,406.48/724,575.42
  6. Step 6: Final answer
    x = 555,128.21

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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.