Home / 1,355,082.60-1,870,001.20-743,222.88

Finding the Fourth Proportional to 1,355,082.60, 1,870,001.20 and 743,222.88

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Solution

The fourth proportional to 1,355,082.60, 1,870,001.20 and 743,222.88 is: 1,025,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,082.60 : 1,870,001.20 = 743,222.88 : x
  2. Step 2: Convert to fraction form
    1,355,082.60/1,870,001.20 = 743,222.88/x
  3. Step 3: Cross multiply
    1,355,082.60x = 1,870,001.20 × 743,222.88
  4. Step 4: Simplify right side
    1,355,082.60x = 1,389,827,677,467.46
  5. Step 5: Solve for x
    x = 1,389,827,677,467.46/1,355,082.60
  6. Step 6: Final answer
    x = 1,025,640.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.