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Finding the Fourth Proportional to 661,614.08, 913,235.36 and 375,324.48

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Solution

The fourth proportional to 661,614.08, 913,235.36 and 375,324.48 is: 518,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,614.08 : 913,235.36 = 375,324.48 : x
  2. Step 2: Convert to fraction form
    661,614.08/913,235.36 = 375,324.48/x
  3. Step 3: Cross multiply
    661,614.08x = 913,235.36 × 375,324.48
  4. Step 4: Simplify right side
    661,614.08x = 342,759,586,609.61
  5. Step 5: Solve for x
    x = 342,759,586,609.61/661,614.08
  6. Step 6: Final answer
    x = 518,065.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.