Home / 1,071,976.58-1,600,253.89-918,521.20

Finding the Fourth Proportional to 1,071,976.58, 1,600,253.89 and 918,521.20

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Solution

The fourth proportional to 1,071,976.58, 1,600,253.89 and 918,521.20 is: 1,371,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,976.58 : 1,600,253.89 = 918,521.20 : x
  2. Step 2: Convert to fraction form
    1,071,976.58/1,600,253.89 = 918,521.20/x
  3. Step 3: Cross multiply
    1,071,976.58x = 1,600,253.89 × 918,521.20
  4. Step 4: Simplify right side
    1,071,976.58x = 1,469,867,123,051.48
  5. Step 5: Solve for x
    x = 1,469,867,123,051.48/1,071,976.58
  6. Step 6: Final answer
    x = 1,371,174.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.