Home / 725,260.20-1,087,890.30-720,011.40

Finding the Fourth Proportional to 725,260.20, 1,087,890.30 and 720,011.40

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Solution

The fourth proportional to 725,260.20, 1,087,890.30 and 720,011.40 is: 1,080,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,260.20 : 1,087,890.30 = 720,011.40 : x
  2. Step 2: Convert to fraction form
    725,260.20/1,087,890.30 = 720,011.40/x
  3. Step 3: Cross multiply
    725,260.20x = 1,087,890.30 × 720,011.40
  4. Step 4: Simplify right side
    725,260.20x = 783,293,417,949.42
  5. Step 5: Solve for x
    x = 783,293,417,949.42/725,260.20
  6. Step 6: Final answer
    x = 1,080,017.10

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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.