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Finding the Fourth Proportional to 453,267.88, 625,397.70 and 283,417

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Solution

The fourth proportional to 453,267.88, 625,397.70 and 283,417 is: 391,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,267.88 : 625,397.70 = 283,417 : x
  2. Step 2: Convert to fraction form
    453,267.88/625,397.70 = 283,417/x
  3. Step 3: Cross multiply
    453,267.88x = 625,397.70 × 283,417
  4. Step 4: Simplify right side
    453,267.88x = 177,248,339,940.90
  5. Step 5: Solve for x
    x = 177,248,339,940.90/453,267.88
  6. Step 6: Final answer
    x = 391,045.45

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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.