Home / 642,946.76-964,443.60-243,617.28

Finding the Fourth Proportional to 642,946.76, 964,443.60 and 243,617.28

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Solution

The fourth proportional to 642,946.76, 964,443.60 and 243,617.28 is: 365,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,946.76 : 964,443.60 = 243,617.28 : x
  2. Step 2: Convert to fraction form
    642,946.76/964,443.60 = 243,617.28/x
  3. Step 3: Cross multiply
    642,946.76x = 964,443.60 × 243,617.28
  4. Step 4: Simplify right side
    642,946.76x = 234,955,126,545.41
  5. Step 5: Solve for x
    x = 234,955,126,545.41/642,946.76
  6. Step 6: Final answer
    x = 365,434.81

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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.