Home / 992,074.87-1,369,354.68-647,963.40

Finding the Fourth Proportional to 992,074.87, 1,369,354.68 and 647,963.40

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Solution

The fourth proportional to 992,074.87, 1,369,354.68 and 647,963.40 is: 894,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,074.87 : 1,369,354.68 = 647,963.40 : x
  2. Step 2: Convert to fraction form
    992,074.87/1,369,354.68 = 647,963.40/x
  3. Step 3: Cross multiply
    992,074.87x = 1,369,354.68 × 647,963.40
  4. Step 4: Simplify right side
    992,074.87x = 887,291,711,018.90
  5. Step 5: Solve for x
    x = 887,291,711,018.90/992,074.87
  6. Step 6: Final answer
    x = 894,379.79

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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.