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Finding the Fourth Proportional to 624,207.40, 934,727.10 and 343,407.40

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Solution

The fourth proportional to 624,207.40, 934,727.10 and 343,407.40 is: 514,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,207.40 : 934,727.10 = 343,407.40 : x
  2. Step 2: Convert to fraction form
    624,207.40/934,727.10 = 343,407.40/x
  3. Step 3: Cross multiply
    624,207.40x = 934,727.10 × 343,407.40
  4. Step 4: Simplify right side
    624,207.40x = 320,992,203,120.54
  5. Step 5: Solve for x
    x = 320,992,203,120.54/624,207.40
  6. Step 6: Final answer
    x = 514,239.66

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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.