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Finding the Fourth Proportional to 610,876.53, 840,020.24 and 530,163.93

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Solution

The fourth proportional to 610,876.53, 840,020.24 and 530,163.93 is: 729,031.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,876.53 : 840,020.24 = 530,163.93 : x
  2. Step 2: Convert to fraction form
    610,876.53/840,020.24 = 530,163.93/x
  3. Step 3: Cross multiply
    610,876.53x = 840,020.24 × 530,163.93
  4. Step 4: Simplify right side
    610,876.53x = 445,348,431,717.94
  5. Step 5: Solve for x
    x = 445,348,431,717.94/610,876.53
  6. Step 6: Final answer
    x = 729,031.83

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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.