Home / 724,535.68-999,839.80-434,311.20

Finding the Fourth Proportional to 724,535.68, 999,839.80 and 434,311.20

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Solution

The fourth proportional to 724,535.68, 999,839.80 and 434,311.20 is: 599,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,535.68 : 999,839.80 = 434,311.20 : x
  2. Step 2: Convert to fraction form
    724,535.68/999,839.80 = 434,311.20/x
  3. Step 3: Cross multiply
    724,535.68x = 999,839.80 × 434,311.20
  4. Step 4: Simplify right side
    724,535.68x = 434,241,623,345.76
  5. Step 5: Solve for x
    x = 434,241,623,345.76/724,535.68
  6. Step 6: Final answer
    x = 599,337.80

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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.