Home / 738,314.70-1,107,990.45-317,892.30

Finding the Fourth Proportional to 738,314.70, 1,107,990.45 and 317,892.30

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Solution

The fourth proportional to 738,314.70, 1,107,990.45 and 317,892.30 is: 477,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,314.70 : 1,107,990.45 = 317,892.30 : x
  2. Step 2: Convert to fraction form
    738,314.70/1,107,990.45 = 317,892.30/x
  3. Step 3: Cross multiply
    738,314.70x = 1,107,990.45 × 317,892.30
  4. Step 4: Simplify right side
    738,314.70x = 352,221,632,528.54
  5. Step 5: Solve for x
    x = 352,221,632,528.54/738,314.70
  6. Step 6: Final answer
    x = 477,061.65

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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.