Home / 1,245,283.40-1,867,925.10-1,123,248.80

Finding the Fourth Proportional to 1,245,283.40, 1,867,925.10 and 1,123,248.80

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Solution

The fourth proportional to 1,245,283.40, 1,867,925.10 and 1,123,248.80 is: 1,684,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,283.40 : 1,867,925.10 = 1,123,248.80 : x
  2. Step 2: Convert to fraction form
    1,245,283.40/1,867,925.10 = 1,123,248.80/x
  3. Step 3: Cross multiply
    1,245,283.40x = 1,867,925.10 × 1,123,248.80
  4. Step 4: Simplify right side
    1,245,283.40x = 2,098,144,627,064.88
  5. Step 5: Solve for x
    x = 2,098,144,627,064.88/1,245,283.40
  6. Step 6: Final answer
    x = 1,684,873.20

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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.