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Finding the Fourth Proportional to 824,352.86, 1,137,618.78 and 480,180

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Solution

The fourth proportional to 824,352.86, 1,137,618.78 and 480,180 is: 662,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,352.86 : 1,137,618.78 = 480,180 : x
  2. Step 2: Convert to fraction form
    824,352.86/1,137,618.78 = 480,180/x
  3. Step 3: Cross multiply
    824,352.86x = 1,137,618.78 × 480,180
  4. Step 4: Simplify right side
    824,352.86x = 546,261,785,780.40
  5. Step 5: Solve for x
    x = 546,261,785,780.40/824,352.86
  6. Step 6: Final answer
    x = 662,655.29

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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.