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Finding the Fourth Proportional to 502,496.80, 752,938.80 and 265,530.40

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Solution

The fourth proportional to 502,496.80, 752,938.80 and 265,530.40 is: 397,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,496.80 : 752,938.80 = 265,530.40 : x
  2. Step 2: Convert to fraction form
    502,496.80/752,938.80 = 265,530.40/x
  3. Step 3: Cross multiply
    502,496.80x = 752,938.80 × 265,530.40
  4. Step 4: Simplify right side
    502,496.80x = 199,928,140,739.52
  5. Step 5: Solve for x
    x = 199,928,140,739.52/502,496.80
  6. Step 6: Final answer
    x = 397,869.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.