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Finding the Fourth Proportional to 549,331.92, 758,015.40 and 307,580.88

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Solution

The fourth proportional to 549,331.92, 758,015.40 and 307,580.88 is: 424,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,331.92 : 758,015.40 = 307,580.88 : x
  2. Step 2: Convert to fraction form
    549,331.92/758,015.40 = 307,580.88/x
  3. Step 3: Cross multiply
    549,331.92x = 758,015.40 × 307,580.88
  4. Step 4: Simplify right side
    549,331.92x = 233,151,043,785.55
  5. Step 5: Solve for x
    x = 233,151,043,785.55/549,331.92
  6. Step 6: Final answer
    x = 424,426.54

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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.