Home / 992,078.12-1,369,359.14-647,966.63

Finding the Fourth Proportional to 992,078.12, 1,369,359.14 and 647,966.63

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Solution

The fourth proportional to 992,078.12, 1,369,359.14 and 647,966.63 is: 894,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,078.12 : 1,369,359.14 = 647,966.63 : x
  2. Step 2: Convert to fraction form
    992,078.12/1,369,359.14 = 647,966.63/x
  3. Step 3: Cross multiply
    992,078.12x = 1,369,359.14 × 647,966.63
  4. Step 4: Simplify right side
    992,078.12x = 887,299,017,118.87
  5. Step 5: Solve for x
    x = 887,299,017,118.87/992,078.12
  6. Step 6: Final answer
    x = 894,384.23

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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.