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Finding the Fourth Proportional to 584,020.36, 805,217.88 and 487,363.48

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Solution

The fourth proportional to 584,020.36, 805,217.88 and 487,363.48 is: 671,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,020.36 : 805,217.88 = 487,363.48 : x
  2. Step 2: Convert to fraction form
    584,020.36/805,217.88 = 487,363.48/x
  3. Step 3: Cross multiply
    584,020.36x = 805,217.88 × 487,363.48
  4. Step 4: Simplify right side
    584,020.36x = 392,433,788,155.02
  5. Step 5: Solve for x
    x = 392,433,788,155.02/584,020.36
  6. Step 6: Final answer
    x = 671,952.24

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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.