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Finding the Fourth Proportional to 549,523.88, 758,338.49 and 307,808.74

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Solution

The fourth proportional to 549,523.88, 758,338.49 and 307,808.74 is: 424,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,523.88 : 758,338.49 = 307,808.74 : x
  2. Step 2: Convert to fraction form
    549,523.88/758,338.49 = 307,808.74/x
  3. Step 3: Cross multiply
    549,523.88x = 758,338.49 × 307,808.74
  4. Step 4: Simplify right side
    549,523.88x = 233,423,209,769.67
  5. Step 5: Solve for x
    x = 233,423,209,769.67/549,523.88
  6. Step 6: Final answer
    x = 424,773.55

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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.