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Finding the Fourth Proportional to 624,207.90, 934,727.85 and 343,407.90

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Solution

The fourth proportional to 624,207.90, 934,727.85 and 343,407.90 is: 514,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,207.90 : 934,727.85 = 343,407.90 : x
  2. Step 2: Convert to fraction form
    624,207.90/934,727.85 = 343,407.90/x
  3. Step 3: Cross multiply
    624,207.90x = 934,727.85 × 343,407.90
  4. Step 4: Simplify right side
    624,207.90x = 320,992,928,040.02
  5. Step 5: Solve for x
    x = 320,992,928,040.02/624,207.90
  6. Step 6: Final answer
    x = 514,240.41

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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.