Home / 1,028,959.20-1,543,497.12-319,088.16

Finding the Fourth Proportional to 1,028,959.20, 1,543,497.12 and 319,088.16

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Solution

The fourth proportional to 1,028,959.20, 1,543,497.12 and 319,088.16 is: 478,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,959.20 : 1,543,497.12 = 319,088.16 : x
  2. Step 2: Convert to fraction form
    1,028,959.20/1,543,497.12 = 319,088.16/x
  3. Step 3: Cross multiply
    1,028,959.20x = 1,543,497.12 × 319,088.16
  4. Step 4: Simplify right side
    1,028,959.20x = 492,511,655,986.10
  5. Step 5: Solve for x
    x = 492,511,655,986.10/1,028,959.20
  6. Step 6: Final answer
    x = 478,650.33

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Double scale
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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.