Home / 624,630.38-861,989.87-348,988.29

Finding the Fourth Proportional to 624,630.38, 861,989.87 and 348,988.29

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Solution

The fourth proportional to 624,630.38, 861,989.87 and 348,988.29 is: 481,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,630.38 : 861,989.87 = 348,988.29 : x
  2. Step 2: Convert to fraction form
    624,630.38/861,989.87 = 348,988.29/x
  3. Step 3: Cross multiply
    624,630.38x = 861,989.87 × 348,988.29
  4. Step 4: Simplify right side
    624,630.38x = 300,824,370,728.62
  5. Step 5: Solve for x
    x = 300,824,370,728.62/624,630.38
  6. Step 6: Final answer
    x = 481,603.81

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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.