Home / 571,964.40-789,405.36-317,397.60

Finding the Fourth Proportional to 571,964.40, 789,405.36 and 317,397.60

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Solution

The fourth proportional to 571,964.40, 789,405.36 and 317,397.60 is: 438,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,964.40 : 789,405.36 = 317,397.60 : x
  2. Step 2: Convert to fraction form
    571,964.40/789,405.36 = 317,397.60/x
  3. Step 3: Cross multiply
    571,964.40x = 789,405.36 × 317,397.60
  4. Step 4: Simplify right side
    571,964.40x = 250,555,366,691.14
  5. Step 5: Solve for x
    x = 250,555,366,691.14/571,964.40
  6. Step 6: Final answer
    x = 438,061.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.