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Finding the Fourth Proportional to 438,773.80, 657,176.55 and 360,041.80

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Solution

The fourth proportional to 438,773.80, 657,176.55 and 360,041.80 is: 539,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,773.80 : 657,176.55 = 360,041.80 : x
  2. Step 2: Convert to fraction form
    438,773.80/657,176.55 = 360,041.80/x
  3. Step 3: Cross multiply
    438,773.80x = 657,176.55 × 360,041.80
  4. Step 4: Simplify right side
    438,773.80x = 236,611,027,979.79
  5. Step 5: Solve for x
    x = 236,611,027,979.79/438,773.80
  6. Step 6: Final answer
    x = 539,255.14

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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.