Home / 1,188,218.70-1,782,328.05-714,660.30

Finding the Fourth Proportional to 1,188,218.70, 1,782,328.05 and 714,660.30

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Solution

The fourth proportional to 1,188,218.70, 1,782,328.05 and 714,660.30 is: 1,071,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,218.70 : 1,782,328.05 = 714,660.30 : x
  2. Step 2: Convert to fraction form
    1,188,218.70/1,782,328.05 = 714,660.30/x
  3. Step 3: Cross multiply
    1,188,218.70x = 1,782,328.05 × 714,660.30
  4. Step 4: Simplify right side
    1,188,218.70x = 1,273,759,098,911.42
  5. Step 5: Solve for x
    x = 1,273,759,098,911.42/1,188,218.70
  6. Step 6: Final answer
    x = 1,071,990.45

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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.