Home / 1,251,298.80-1,726,801.20-678,348

Finding the Fourth Proportional to 1,251,298.80, 1,726,801.20 and 678,348

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Solution

The fourth proportional to 1,251,298.80, 1,726,801.20 and 678,348 is: 936,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,298.80 : 1,726,801.20 = 678,348 : x
  2. Step 2: Convert to fraction form
    1,251,298.80/1,726,801.20 = 678,348/x
  3. Step 3: Cross multiply
    1,251,298.80x = 1,726,801.20 × 678,348
  4. Step 4: Simplify right side
    1,251,298.80x = 1,171,372,140,417.60
  5. Step 5: Solve for x
    x = 1,171,372,140,417.60/1,251,298.80
  6. Step 6: Final answer
    x = 936,125.04

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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.