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Finding the Fourth Proportional to 624,302.40, 934,869.60 and 343,502.40

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Solution

The fourth proportional to 624,302.40, 934,869.60 and 343,502.40 is: 514,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,302.40 : 934,869.60 = 343,502.40 : x
  2. Step 2: Convert to fraction form
    624,302.40/934,869.60 = 343,502.40/x
  3. Step 3: Cross multiply
    624,302.40x = 934,869.60 × 343,502.40
  4. Step 4: Simplify right side
    624,302.40x = 321,129,951,287.04
  5. Step 5: Solve for x
    x = 321,129,951,287.04/624,302.40
  6. Step 6: Final answer
    x = 514,382.05

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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.