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Finding the Fourth Proportional to 342,607.20, 512,452.80 and 307,323.60

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Solution

The fourth proportional to 342,607.20, 512,452.80 and 307,323.60 is: 459,677.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,607.20 : 512,452.80 = 307,323.60 : x
  2. Step 2: Convert to fraction form
    342,607.20/512,452.80 = 307,323.60/x
  3. Step 3: Cross multiply
    342,607.20x = 512,452.80 × 307,323.60
  4. Step 4: Simplify right side
    342,607.20x = 157,488,839,326.08
  5. Step 5: Solve for x
    x = 157,488,839,326.08/342,607.20
  6. Step 6: Final answer
    x = 459,677.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.