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Finding the Fourth Proportional to 724,379.79, 999,647.98 and 452,605.30

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Solution

The fourth proportional to 724,379.79, 999,647.98 and 452,605.30 is: 624,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,379.79 : 999,647.98 = 452,605.30 : x
  2. Step 2: Convert to fraction form
    724,379.79/999,647.98 = 452,605.30/x
  3. Step 3: Cross multiply
    724,379.79x = 999,647.98 × 452,605.30
  4. Step 4: Simplify right side
    724,379.79x = 452,445,973,882.29
  5. Step 5: Solve for x
    x = 452,445,973,882.29/724,379.79
  6. Step 6: Final answer
    x = 624,597.73

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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.