Home / 1,386,041.70-2,079,062.55-628,246.20

Finding the Fourth Proportional to 1,386,041.70, 2,079,062.55 and 628,246.20

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Solution

The fourth proportional to 1,386,041.70, 2,079,062.55 and 628,246.20 is: 942,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,041.70 : 2,079,062.55 = 628,246.20 : x
  2. Step 2: Convert to fraction form
    1,386,041.70/2,079,062.55 = 628,246.20/x
  3. Step 3: Cross multiply
    1,386,041.70x = 2,079,062.55 × 628,246.20
  4. Step 4: Simplify right side
    1,386,041.70x = 1,306,163,146,599.81
  5. Step 5: Solve for x
    x = 1,306,163,146,599.81/1,386,041.70
  6. Step 6: Final answer
    x = 942,369.30

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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.