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Finding the Fourth Proportional to 549,150, 757,839.64 and 307,426.48

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Solution

The fourth proportional to 549,150, 757,839.64 and 307,426.48 is: 424,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,150 : 757,839.64 = 307,426.48 : x
  2. Step 2: Convert to fraction form
    549,150/757,839.64 = 307,426.48/x
  3. Step 3: Cross multiply
    549,150x = 757,839.64 × 307,426.48
  4. Step 4: Simplify right side
    549,150x = 232,979,972,929.67
  5. Step 5: Solve for x
    x = 232,979,972,929.67/549,150
  6. Step 6: Final answer
    x = 424,255.62

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1.5x scale

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.