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Finding the Fourth Proportional to 692,132.91, 955,000.81 and 397,725.71

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Solution

The fourth proportional to 692,132.91, 955,000.81 and 397,725.71 is: 548,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,132.91 : 955,000.81 = 397,725.71 : x
  2. Step 2: Convert to fraction form
    692,132.91/955,000.81 = 397,725.71/x
  3. Step 3: Cross multiply
    692,132.91x = 955,000.81 × 397,725.71
  4. Step 4: Simplify right side
    692,132.91x = 379,828,370,929.98
  5. Step 5: Solve for x
    x = 379,828,370,929.98/692,132.91
  6. Step 6: Final answer
    x = 548,779.53

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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.