Home / 485,269.48-669,730.02-284,065

Finding the Fourth Proportional to 485,269.48, 669,730.02 and 284,065

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Solution

The fourth proportional to 485,269.48, 669,730.02 and 284,065 is: 392,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,269.48 : 669,730.02 = 284,065 : x
  2. Step 2: Convert to fraction form
    485,269.48/669,730.02 = 284,065/x
  3. Step 3: Cross multiply
    485,269.48x = 669,730.02 × 284,065
  4. Step 4: Simplify right side
    485,269.48x = 190,246,858,131.30
  5. Step 5: Solve for x
    x = 190,246,858,131.30/485,269.48
  6. Step 6: Final answer
    x = 392,043.73

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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.