Home / 1,428,642.24-1,971,520.56-784,073.04

Finding the Fourth Proportional to 1,428,642.24, 1,971,520.56 and 784,073.04

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Solution

The fourth proportional to 1,428,642.24, 1,971,520.56 and 784,073.04 is: 1,082,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,642.24 : 1,971,520.56 = 784,073.04 : x
  2. Step 2: Convert to fraction form
    1,428,642.24/1,971,520.56 = 784,073.04/x
  3. Step 3: Cross multiply
    1,428,642.24x = 1,971,520.56 × 784,073.04
  4. Step 4: Simplify right side
    1,428,642.24x = 1,545,816,118,901.70
  5. Step 5: Solve for x
    x = 1,545,816,118,901.70/1,428,642.24
  6. Step 6: Final answer
    x = 1,082,017.65

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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.