Home / 1,123,280.70-1,684,921.05-1,011,306.30

Finding the Fourth Proportional to 1,123,280.70, 1,684,921.05 and 1,011,306.30

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Solution

The fourth proportional to 1,123,280.70, 1,684,921.05 and 1,011,306.30 is: 1,516,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,280.70 : 1,684,921.05 = 1,011,306.30 : x
  2. Step 2: Convert to fraction form
    1,123,280.70/1,684,921.05 = 1,011,306.30/x
  3. Step 3: Cross multiply
    1,123,280.70x = 1,684,921.05 × 1,011,306.30
  4. Step 4: Simplify right side
    1,123,280.70x = 1,703,971,272,867.62
  5. Step 5: Solve for x
    x = 1,703,971,272,867.62/1,123,280.70
  6. Step 6: Final answer
    x = 1,516,959.45

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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.