Home / 1,386,508.70-2,079,763.05-487,943.30

Finding the Fourth Proportional to 1,386,508.70, 2,079,763.05 and 487,943.30

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Solution

The fourth proportional to 1,386,508.70, 2,079,763.05 and 487,943.30 is: 731,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,508.70 : 2,079,763.05 = 487,943.30 : x
  2. Step 2: Convert to fraction form
    1,386,508.70/2,079,763.05 = 487,943.30/x
  3. Step 3: Cross multiply
    1,386,508.70x = 2,079,763.05 × 487,943.30
  4. Step 4: Simplify right side
    1,386,508.70x = 1,014,806,445,835.07
  5. Step 5: Solve for x
    x = 1,014,806,445,835.07/1,386,508.70
  6. Step 6: Final answer
    x = 731,914.95

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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.