Home / 1,142,086.08-1,715,601.12-742,521.36

Finding the Fourth Proportional to 1,142,086.08, 1,715,601.12 and 742,521.36

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Solution

The fourth proportional to 1,142,086.08, 1,715,601.12 and 742,521.36 is: 1,115,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,086.08 : 1,715,601.12 = 742,521.36 : x
  2. Step 2: Convert to fraction form
    1,142,086.08/1,715,601.12 = 742,521.36/x
  3. Step 3: Cross multiply
    1,142,086.08x = 1,715,601.12 × 742,521.36
  4. Step 4: Simplify right side
    1,142,086.08x = 1,273,870,476,839.92
  5. Step 5: Solve for x
    x = 1,273,870,476,839.92/1,142,086.08
  6. Step 6: Final answer
    x = 1,115,389.20

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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.