Home / 1,123,618.30-1,685,427.45-745,704.70

Finding the Fourth Proportional to 1,123,618.30, 1,685,427.45 and 745,704.70

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Solution

The fourth proportional to 1,123,618.30, 1,685,427.45 and 745,704.70 is: 1,118,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,618.30 : 1,685,427.45 = 745,704.70 : x
  2. Step 2: Convert to fraction form
    1,123,618.30/1,685,427.45 = 745,704.70/x
  3. Step 3: Cross multiply
    1,123,618.30x = 1,685,427.45 × 745,704.70
  4. Step 4: Simplify right side
    1,123,618.30x = 1,256,831,170,974.01
  5. Step 5: Solve for x
    x = 1,256,831,170,974.01/1,123,618.30
  6. Step 6: Final answer
    x = 1,118,557.05

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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.