Home / 1,220,497.38-1,684,385.76-676,803.60

Finding the Fourth Proportional to 1,220,497.38, 1,684,385.76 and 676,803.60

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Solution

The fourth proportional to 1,220,497.38, 1,684,385.76 and 676,803.60 is: 934,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,497.38 : 1,684,385.76 = 676,803.60 : x
  2. Step 2: Convert to fraction form
    1,220,497.38/1,684,385.76 = 676,803.60/x
  3. Step 3: Cross multiply
    1,220,497.38x = 1,684,385.76 × 676,803.60
  4. Step 4: Simplify right side
    1,220,497.38x = 1,139,998,346,156.74
  5. Step 5: Solve for x
    x = 1,139,998,346,156.74/1,220,497.38
  6. Step 6: Final answer
    x = 934,044.07

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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.