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Finding the Fourth Proportional to 648,263.52, 894,353.94 and 406,124.28

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Solution

The fourth proportional to 648,263.52, 894,353.94 and 406,124.28 is: 560,295.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,263.52 : 894,353.94 = 406,124.28 : x
  2. Step 2: Convert to fraction form
    648,263.52/894,353.94 = 406,124.28/x
  3. Step 3: Cross multiply
    648,263.52x = 894,353.94 × 406,124.28
  4. Step 4: Simplify right side
    648,263.52x = 363,218,849,947.66
  5. Step 5: Solve for x
    x = 363,218,849,947.66/648,263.52
  6. Step 6: Final answer
    x = 560,295.06

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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.