Home / 1,127,120.28-1,690,939.68-368,986.20

Finding the Fourth Proportional to 1,127,120.28, 1,690,939.68 and 368,986.20

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Solution

The fourth proportional to 1,127,120.28, 1,690,939.68 and 368,986.20 is: 553,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,120.28 : 1,690,939.68 = 368,986.20 : x
  2. Step 2: Convert to fraction form
    1,127,120.28/1,690,939.68 = 368,986.20/x
  3. Step 3: Cross multiply
    1,127,120.28x = 1,690,939.68 × 368,986.20
  4. Step 4: Simplify right side
    1,127,120.28x = 623,933,406,952.42
  5. Step 5: Solve for x
    x = 623,933,406,952.42/1,127,120.28
  6. Step 6: Final answer
    x = 553,564.17

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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.