Home / 1,028,858.10-1,543,287.15-319,103.70

Finding the Fourth Proportional to 1,028,858.10, 1,543,287.15 and 319,103.70

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Solution

The fourth proportional to 1,028,858.10, 1,543,287.15 and 319,103.70 is: 478,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,858.10 : 1,543,287.15 = 319,103.70 : x
  2. Step 2: Convert to fraction form
    1,028,858.10/1,543,287.15 = 319,103.70/x
  3. Step 3: Cross multiply
    1,028,858.10x = 1,543,287.15 × 319,103.70
  4. Step 4: Simplify right side
    1,028,858.10x = 492,468,639,727.46
  5. Step 5: Solve for x
    x = 492,468,639,727.46/1,028,858.10
  6. Step 6: Final answer
    x = 478,655.55

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1.5x scale

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.