Home / 1,390,147.30-1,918,072.20-846,276.85

Finding the Fourth Proportional to 1,390,147.30, 1,918,072.20 and 846,276.85

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Solution

The fourth proportional to 1,390,147.30, 1,918,072.20 and 846,276.85 is: 1,167,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,147.30 : 1,918,072.20 = 846,276.85 : x
  2. Step 2: Convert to fraction form
    1,390,147.30/1,918,072.20 = 846,276.85/x
  3. Step 3: Cross multiply
    1,390,147.30x = 1,918,072.20 × 846,276.85
  4. Step 4: Simplify right side
    1,390,147.30x = 1,623,220,099,488.57
  5. Step 5: Solve for x
    x = 1,623,220,099,488.57/1,390,147.30
  6. Step 6: Final answer
    x = 1,167,660.51

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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.