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Finding the Fourth Proportional to 557,688.92, 834,343.58 and 430,367.24

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Solution

The fourth proportional to 557,688.92, 834,343.58 and 430,367.24 is: 643,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,688.92 : 834,343.58 = 430,367.24 : x
  2. Step 2: Convert to fraction form
    557,688.92/834,343.58 = 430,367.24/x
  3. Step 3: Cross multiply
    557,688.92x = 834,343.58 × 430,367.24
  4. Step 4: Simplify right side
    557,688.92x = 359,074,143,736.32
  5. Step 5: Solve for x
    x = 359,074,143,736.32/557,688.92
  6. Step 6: Final answer
    x = 643,861.00

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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.