Home / 674,014.40-1,010,330.40-393,387.20

Finding the Fourth Proportional to 674,014.40, 1,010,330.40 and 393,387.20

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Solution

The fourth proportional to 674,014.40, 1,010,330.40 and 393,387.20 is: 589,677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,014.40 : 1,010,330.40 = 393,387.20 : x
  2. Step 2: Convert to fraction form
    674,014.40/1,010,330.40 = 393,387.20/x
  3. Step 3: Cross multiply
    674,014.40x = 1,010,330.40 × 393,387.20
  4. Step 4: Simplify right side
    674,014.40x = 397,451,047,130.88
  5. Step 5: Solve for x
    x = 397,451,047,130.88/674,014.40
  6. Step 6: Final answer
    x = 589,677.38

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Double scale
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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.