Home / 1,128,681.20-1,693,017.25-408,854.52

Finding the Fourth Proportional to 1,128,681.20, 1,693,017.25 and 408,854.52

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Solution

The fourth proportional to 1,128,681.20, 1,693,017.25 and 408,854.52 is: 613,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,681.20 : 1,693,017.25 = 408,854.52 : x
  2. Step 2: Convert to fraction form
    1,128,681.20/1,693,017.25 = 408,854.52/x
  3. Step 3: Cross multiply
    1,128,681.20x = 1,693,017.25 × 408,854.52
  4. Step 4: Simplify right side
    1,128,681.20x = 692,197,754,078.33
  5. Step 5: Solve for x
    x = 692,197,754,078.33/1,128,681.20
  6. Step 6: Final answer
    x = 613,280.13

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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.