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Finding the Fourth Proportional to 724,300.86, 999,527.96 and 402,002.68

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Solution

The fourth proportional to 724,300.86, 999,527.96 and 402,002.68 is: 554,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,300.86 : 999,527.96 = 402,002.68 : x
  2. Step 2: Convert to fraction form
    724,300.86/999,527.96 = 402,002.68/x
  3. Step 3: Cross multiply
    724,300.86x = 999,527.96 × 402,002.68
  4. Step 4: Simplify right side
    724,300.86x = 401,812,918,654.93
  5. Step 5: Solve for x
    x = 401,812,918,654.93/724,300.86
  6. Step 6: Final answer
    x = 554,759.69

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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.