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Finding the Fourth Proportional to 485,712.32, 670,285.92 and 270,866.00

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Solution

The fourth proportional to 485,712.32, 670,285.92 and 270,866.00 is: 373,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,712.32 : 670,285.92 = 270,866.00 : x
  2. Step 2: Convert to fraction form
    485,712.32/670,285.92 = 270,866.00/x
  3. Step 3: Cross multiply
    485,712.32x = 670,285.92 × 270,866.00
  4. Step 4: Simplify right side
    485,712.32x = 181,557,662,655.29
  5. Step 5: Solve for x
    x = 181,557,662,655.29/485,712.32
  6. Step 6: Final answer
    x = 373,796.70

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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.