Home / 724,539.79-999,814.98-402,224.86

Finding the Fourth Proportional to 724,539.79, 999,814.98 and 402,224.86

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Solution

The fourth proportional to 724,539.79, 999,814.98 and 402,224.86 is: 555,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,539.79 : 999,814.98 = 402,224.86 : x
  2. Step 2: Convert to fraction form
    724,539.79/999,814.98 = 402,224.86/x
  3. Step 3: Cross multiply
    724,539.79x = 999,814.98 × 402,224.86
  4. Step 4: Simplify right side
    724,539.79x = 402,150,440,356.40
  5. Step 5: Solve for x
    x = 402,150,440,356.40/724,539.79
  6. Step 6: Final answer
    x = 555,042.59

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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.