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Finding the Fourth Proportional to 724,266.72, 999,472.96 and 401,958.08

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Solution

The fourth proportional to 724,266.72, 999,472.96 and 401,958.08 is: 554,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,266.72 : 999,472.96 = 401,958.08 : x
  2. Step 2: Convert to fraction form
    724,266.72/999,472.96 = 401,958.08/x
  3. Step 3: Cross multiply
    724,266.72x = 999,472.96 × 401,958.08
  4. Step 4: Simplify right side
    724,266.72x = 401,746,232,013.52
  5. Step 5: Solve for x
    x = 401,746,232,013.52/724,266.72
  6. Step 6: Final answer
    x = 554,693.76

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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.