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Finding the Fourth Proportional to 704,886.57, 972,717.39 and 382,589.80

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Solution

The fourth proportional to 704,886.57, 972,717.39 and 382,589.80 is: 527,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,886.57 : 972,717.39 = 382,589.80 : x
  2. Step 2: Convert to fraction form
    704,886.57/972,717.39 = 382,589.80/x
  3. Step 3: Cross multiply
    704,886.57x = 972,717.39 × 382,589.80
  4. Step 4: Simplify right side
    704,886.57x = 372,151,749,264.83
  5. Step 5: Solve for x
    x = 372,151,749,264.83/704,886.57
  6. Step 6: Final answer
    x = 527,959.77

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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.