Home / 740,428.20-1,110,642.30-207,966.60

Finding the Fourth Proportional to 740,428.20, 1,110,642.30 and 207,966.60

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Solution

The fourth proportional to 740,428.20, 1,110,642.30 and 207,966.60 is: 311,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,428.20 : 1,110,642.30 = 207,966.60 : x
  2. Step 2: Convert to fraction form
    740,428.20/1,110,642.30 = 207,966.60/x
  3. Step 3: Cross multiply
    740,428.20x = 1,110,642.30 × 207,966.60
  4. Step 4: Simplify right side
    740,428.20x = 230,976,502,947.18
  5. Step 5: Solve for x
    x = 230,976,502,947.18/740,428.20
  6. Step 6: Final answer
    x = 311,949.90

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1.5x scale

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.