Home / 1,659,123.80-2,290,298.56-1,115,574.65

Finding the Fourth Proportional to 1,659,123.80, 2,290,298.56 and 1,115,574.65

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Solution

The fourth proportional to 1,659,123.80, 2,290,298.56 and 1,115,574.65 is: 1,539,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,123.80 : 2,290,298.56 = 1,115,574.65 : x
  2. Step 2: Convert to fraction form
    1,659,123.80/2,290,298.56 = 1,115,574.65/x
  3. Step 3: Cross multiply
    1,659,123.80x = 2,290,298.56 × 1,115,574.65
  4. Step 4: Simplify right side
    1,659,123.80x = 2,554,999,000,227.07
  5. Step 5: Solve for x
    x = 2,554,999,000,227.07/1,659,123.80
  6. Step 6: Final answer
    x = 1,539,968.87

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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.