Home / 708,065.80-1,061,951.10-258,998.20

Finding the Fourth Proportional to 708,065.80, 1,061,951.10 and 258,998.20

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Solution

The fourth proportional to 708,065.80, 1,061,951.10 and 258,998.20 is: 388,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,065.80 : 1,061,951.10 = 258,998.20 : x
  2. Step 2: Convert to fraction form
    708,065.80/1,061,951.10 = 258,998.20/x
  3. Step 3: Cross multiply
    708,065.80x = 1,061,951.10 × 258,998.20
  4. Step 4: Simplify right side
    708,065.80x = 275,043,423,388.02
  5. Step 5: Solve for x
    x = 275,043,423,388.02/708,065.80
  6. Step 6: Final answer
    x = 388,443.31

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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.