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Finding the Fourth Proportional to 672,665.86, 928,266.36 and 366,744.89

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Solution

The fourth proportional to 672,665.86, 928,266.36 and 366,744.89 is: 506,101.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,665.86 : 928,266.36 = 366,744.89 : x
  2. Step 2: Convert to fraction form
    672,665.86/928,266.36 = 366,744.89/x
  3. Step 3: Cross multiply
    672,665.86x = 928,266.36 × 366,744.89
  4. Step 4: Simplify right side
    672,665.86x = 340,436,944,088.90
  5. Step 5: Solve for x
    x = 340,436,944,088.90/672,665.86
  6. Step 6: Final answer
    x = 506,101.12

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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.