Home / 624,147.12-861,320.80-337,667.28

Finding the Fourth Proportional to 624,147.12, 861,320.80 and 337,667.28

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Solution

The fourth proportional to 624,147.12, 861,320.80 and 337,667.28 is: 465,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,147.12 : 861,320.80 = 337,667.28 : x
  2. Step 2: Convert to fraction form
    624,147.12/861,320.80 = 337,667.28/x
  3. Step 3: Cross multiply
    624,147.12x = 861,320.80 × 337,667.28
  4. Step 4: Simplify right side
    624,147.12x = 290,839,851,743.42
  5. Step 5: Solve for x
    x = 290,839,851,743.42/624,147.12
  6. Step 6: Final answer
    x = 465,979.64

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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.