Home / 1,390,478.70-2,085,912.45-591,753.90

Finding the Fourth Proportional to 1,390,478.70, 2,085,912.45 and 591,753.90

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Solution

The fourth proportional to 1,390,478.70, 2,085,912.45 and 591,753.90 is: 887,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,478.70 : 2,085,912.45 = 591,753.90 : x
  2. Step 2: Convert to fraction form
    1,390,478.70/2,085,912.45 = 591,753.90/x
  3. Step 3: Cross multiply
    1,390,478.70x = 2,085,912.45 × 591,753.90
  4. Step 4: Simplify right side
    1,390,478.70x = 1,234,346,827,346.06
  5. Step 5: Solve for x
    x = 1,234,346,827,346.06/1,390,478.70
  6. Step 6: Final answer
    x = 887,713.58

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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.