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Finding the Fourth Proportional to 704,722.79, 972,518.08 and 382,432.89

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Solution

The fourth proportional to 704,722.79, 972,518.08 and 382,432.89 is: 527,757.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,722.79 : 972,518.08 = 382,432.89 : x
  2. Step 2: Convert to fraction form
    704,722.79/972,518.08 = 382,432.89/x
  3. Step 3: Cross multiply
    704,722.79x = 972,518.08 × 382,432.89
  4. Step 4: Simplify right side
    704,722.79x = 371,922,899,911.65
  5. Step 5: Solve for x
    x = 371,922,899,911.65/704,722.79
  6. Step 6: Final answer
    x = 527,757.73

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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.