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Finding the Fourth Proportional to 630,623.80, 944,553.30 and 547,679.80

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Solution

The fourth proportional to 630,623.80, 944,553.30 and 547,679.80 is: 820,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,623.80 : 944,553.30 = 547,679.80 : x
  2. Step 2: Convert to fraction form
    630,623.80/944,553.30 = 547,679.80/x
  3. Step 3: Cross multiply
    630,623.80x = 944,553.30 × 547,679.80
  4. Step 4: Simplify right side
    630,623.80x = 517,312,762,433.34
  5. Step 5: Solve for x
    x = 517,312,762,433.34/630,623.80
  6. Step 6: Final answer
    x = 820,319.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.