Home / 721,227.78-1,080,886.06-383,541.31

Finding the Fourth Proportional to 721,227.78, 1,080,886.06 and 383,541.31

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Solution

The fourth proportional to 721,227.78, 1,080,886.06 and 383,541.31 is: 574,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,227.78 : 1,080,886.06 = 383,541.31 : x
  2. Step 2: Convert to fraction form
    721,227.78/1,080,886.06 = 383,541.31/x
  3. Step 3: Cross multiply
    721,227.78x = 1,080,886.06 × 383,541.31
  4. Step 4: Simplify right side
    721,227.78x = 414,564,455,413.14
  5. Step 5: Solve for x
    x = 414,564,455,413.14/721,227.78
  6. Step 6: Final answer
    x = 574,803.78

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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.