Home / 1,208,739.10-1,813,108.65-727,663.90

Finding the Fourth Proportional to 1,208,739.10, 1,813,108.65 and 727,663.90

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Solution

The fourth proportional to 1,208,739.10, 1,813,108.65 and 727,663.90 is: 1,091,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,739.10 : 1,813,108.65 = 727,663.90 : x
  2. Step 2: Convert to fraction form
    1,208,739.10/1,813,108.65 = 727,663.90/x
  3. Step 3: Cross multiply
    1,208,739.10x = 1,813,108.65 × 727,663.90
  4. Step 4: Simplify right side
    1,208,739.10x = 1,319,333,711,382.73
  5. Step 5: Solve for x
    x = 1,319,333,711,382.73/1,208,739.10
  6. Step 6: Final answer
    x = 1,091,495.85

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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.