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Finding the Fourth Proportional to 549,542.64, 758,397.42 and 307,811.10

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Solution

The fourth proportional to 549,542.64, 758,397.42 and 307,811.10 is: 424,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,542.64 : 758,397.42 = 307,811.10 : x
  2. Step 2: Convert to fraction form
    549,542.64/758,397.42 = 307,811.10/x
  3. Step 3: Cross multiply
    549,542.64x = 758,397.42 × 307,811.10
  4. Step 4: Simplify right side
    549,542.64x = 233,443,144,087.36
  5. Step 5: Solve for x
    x = 233,443,144,087.36/549,542.64
  6. Step 6: Final answer
    x = 424,795.32

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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.