Home / 779,900.70-1,168,101.45-639,932.70

Finding the Fourth Proportional to 779,900.70, 1,168,101.45 and 639,932.70

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Solution

The fourth proportional to 779,900.70, 1,168,101.45 and 639,932.70 is: 958,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,900.70 : 1,168,101.45 = 639,932.70 : x
  2. Step 2: Convert to fraction form
    779,900.70/1,168,101.45 = 639,932.70/x
  3. Step 3: Cross multiply
    779,900.70x = 1,168,101.45 × 639,932.70
  4. Step 4: Simplify right side
    779,900.70x = 747,506,314,772.42
  5. Step 5: Solve for x
    x = 747,506,314,772.42/779,900.70
  6. Step 6: Final answer
    x = 958,463.45

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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.