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Finding the Fourth Proportional to 624,234.40, 934,767.60 and 343,434.40

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Solution

The fourth proportional to 624,234.40, 934,767.60 and 343,434.40 is: 514,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,234.40 : 934,767.60 = 343,434.40 : x
  2. Step 2: Convert to fraction form
    624,234.40/934,767.60 = 343,434.40/x
  3. Step 3: Cross multiply
    624,234.40x = 934,767.60 × 343,434.40
  4. Step 4: Simplify right side
    624,234.40x = 321,031,349,845.44
  5. Step 5: Solve for x
    x = 321,031,349,845.44/624,234.40
  6. Step 6: Final answer
    x = 514,280.13

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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.