Home / 1,313,065.28-1,969,597.28-315,792.96

Finding the Fourth Proportional to 1,313,065.28, 1,969,597.28 and 315,792.96

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Solution

The fourth proportional to 1,313,065.28, 1,969,597.28 and 315,792.96 is: 473,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,065.28 : 1,969,597.28 = 315,792.96 : x
  2. Step 2: Convert to fraction form
    1,313,065.28/1,969,597.28 = 315,792.96/x
  3. Step 3: Cross multiply
    1,313,065.28x = 1,969,597.28 × 315,792.96
  4. Step 4: Simplify right side
    1,313,065.28x = 621,984,955,059.15
  5. Step 5: Solve for x
    x = 621,984,955,059.15/1,313,065.28
  6. Step 6: Final answer
    x = 473,689.29

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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.