Home / 708,112.95-1,062,612.30-287,388.83

Finding the Fourth Proportional to 708,112.95, 1,062,612.30 and 287,388.83

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Solution

The fourth proportional to 708,112.95, 1,062,612.30 and 287,388.83 is: 431,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,112.95 : 1,062,612.30 = 287,388.83 : x
  2. Step 2: Convert to fraction form
    708,112.95/1,062,612.30 = 287,388.83/x
  3. Step 3: Cross multiply
    708,112.95x = 1,062,612.30 × 287,388.83
  4. Step 4: Simplify right side
    708,112.95x = 305,382,900,327.55
  5. Step 5: Solve for x
    x = 305,382,900,327.55/708,112.95
  6. Step 6: Final answer
    x = 431,262.98

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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.