Home / 1,239,376.20-1,859,064.30-814,223.40

Finding the Fourth Proportional to 1,239,376.20, 1,859,064.30 and 814,223.40

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Solution

The fourth proportional to 1,239,376.20, 1,859,064.30 and 814,223.40 is: 1,221,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,376.20 : 1,859,064.30 = 814,223.40 : x
  2. Step 2: Convert to fraction form
    1,239,376.20/1,859,064.30 = 814,223.40/x
  3. Step 3: Cross multiply
    1,239,376.20x = 1,859,064.30 × 814,223.40
  4. Step 4: Simplify right side
    1,239,376.20x = 1,513,693,655,164.62
  5. Step 5: Solve for x
    x = 1,513,693,655,164.62/1,239,376.20
  6. Step 6: Final answer
    x = 1,221,335.10

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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.