Home / 1,791,808.40-2,688,749.40-669,990.80

Finding the Fourth Proportional to 1,791,808.40, 2,688,749.40 and 669,990.80

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Solution

The fourth proportional to 1,791,808.40, 2,688,749.40 and 669,990.80 is: 1,005,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,808.40 : 2,688,749.40 = 669,990.80 : x
  2. Step 2: Convert to fraction form
    1,791,808.40/2,688,749.40 = 669,990.80/x
  3. Step 3: Cross multiply
    1,791,808.40x = 2,688,749.40 × 669,990.80
  4. Step 4: Simplify right side
    1,791,808.40x = 1,801,437,361,505.52
  5. Step 5: Solve for x
    x = 1,801,437,361,505.52/1,791,808.40
  6. Step 6: Final answer
    x = 1,005,373.88

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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.