Home / 1,386,042.20-2,079,063.30-628,246.70

Finding the Fourth Proportional to 1,386,042.20, 2,079,063.30 and 628,246.70

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Solution

The fourth proportional to 1,386,042.20, 2,079,063.30 and 628,246.70 is: 942,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,042.20 : 2,079,063.30 = 628,246.70 : x
  2. Step 2: Convert to fraction form
    1,386,042.20/2,079,063.30 = 628,246.70/x
  3. Step 3: Cross multiply
    1,386,042.20x = 2,079,063.30 × 628,246.70
  4. Step 4: Simplify right side
    1,386,042.20x = 1,306,164,657,316.11
  5. Step 5: Solve for x
    x = 1,306,164,657,316.11/1,386,042.20
  6. Step 6: Final answer
    x = 942,370.05

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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.