Home / 1,428,510.70-2,142,766.05-1,113,203.62

Finding the Fourth Proportional to 1,428,510.70, 2,142,766.05 and 1,113,203.62

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Solution

The fourth proportional to 1,428,510.70, 2,142,766.05 and 1,113,203.62 is: 1,669,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,510.70 : 2,142,766.05 = 1,113,203.62 : x
  2. Step 2: Convert to fraction form
    1,428,510.70/2,142,766.05 = 1,113,203.62/x
  3. Step 3: Cross multiply
    1,428,510.70x = 2,142,766.05 × 1,113,203.62
  4. Step 4: Simplify right side
    1,428,510.70x = 2,385,334,923,673.10
  5. Step 5: Solve for x
    x = 2,385,334,923,673.10/1,428,510.70
  6. Step 6: Final answer
    x = 1,669,805.43

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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.