Home / 675,489.02-1,013,356.30-320,499.74

Finding the Fourth Proportional to 675,489.02, 1,013,356.30 and 320,499.74

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Solution

The fourth proportional to 675,489.02, 1,013,356.30 and 320,499.74 is: 480,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,489.02 : 1,013,356.30 = 320,499.74 : x
  2. Step 2: Convert to fraction form
    675,489.02/1,013,356.30 = 320,499.74/x
  3. Step 3: Cross multiply
    675,489.02x = 1,013,356.30 × 320,499.74
  4. Step 4: Simplify right side
    675,489.02x = 324,780,430,677.36
  5. Step 5: Solve for x
    x = 324,780,430,677.36/675,489.02
  6. Step 6: Final answer
    x = 480,807.86

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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.