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Finding the Fourth Proportional to 891,643.60, 1,337,659.80 and 292,502.80

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Solution

The fourth proportional to 891,643.60, 1,337,659.80 and 292,502.80 is: 438,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,643.60 : 1,337,659.80 = 292,502.80 : x
  2. Step 2: Convert to fraction form
    891,643.60/1,337,659.80 = 292,502.80/x
  3. Step 3: Cross multiply
    891,643.60x = 1,337,659.80 × 292,502.80
  4. Step 4: Simplify right side
    891,643.60x = 391,269,236,947.44
  5. Step 5: Solve for x
    x = 391,269,236,947.44/891,643.60
  6. Step 6: Final answer
    x = 438,817.97

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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.