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Finding the Fourth Proportional to 576,478.76, 865,242.87 and 306,833.27

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Solution

The fourth proportional to 576,478.76, 865,242.87 and 306,833.27 is: 460,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,478.76 : 865,242.87 = 306,833.27 : x
  2. Step 2: Convert to fraction form
    576,478.76/865,242.87 = 306,833.27/x
  3. Step 3: Cross multiply
    576,478.76x = 865,242.87 × 306,833.27
  4. Step 4: Simplify right side
    576,478.76x = 265,485,294,820.07
  5. Step 5: Solve for x
    x = 265,485,294,820.07/576,478.76
  6. Step 6: Final answer
    x = 460,529.19

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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.