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Finding the Fourth Proportional to 549,645.78, 758,339.01 and 307,895.70

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Solution

The fourth proportional to 549,645.78, 758,339.01 and 307,895.70 is: 424,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,645.78 : 758,339.01 = 307,895.70 : x
  2. Step 2: Convert to fraction form
    549,645.78/758,339.01 = 307,895.70/x
  3. Step 3: Cross multiply
    549,645.78x = 758,339.01 × 307,895.70
  4. Step 4: Simplify right side
    549,645.78x = 233,489,320,321.26
  5. Step 5: Solve for x
    x = 233,489,320,321.26/549,645.78
  6. Step 6: Final answer
    x = 424,799.62

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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.