Home / 724,280.29-999,630.50-418,301.67

Finding the Fourth Proportional to 724,280.29, 999,630.50 and 418,301.67

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Solution

The fourth proportional to 724,280.29, 999,630.50 and 418,301.67 is: 577,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,280.29 : 999,630.50 = 418,301.67 : x
  2. Step 2: Convert to fraction form
    724,280.29/999,630.50 = 418,301.67/x
  3. Step 3: Cross multiply
    724,280.29x = 999,630.50 × 418,301.67
  4. Step 4: Simplify right side
    724,280.29x = 418,147,107,532.94
  5. Step 5: Solve for x
    x = 418,147,107,532.94/724,280.29
  6. Step 6: Final answer
    x = 577,327.75

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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.