Home / 642,061.23-886,073.22-351,693.24

Finding the Fourth Proportional to 642,061.23, 886,073.22 and 351,693.24

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Solution

The fourth proportional to 642,061.23, 886,073.22 and 351,693.24 is: 485,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,061.23 : 886,073.22 = 351,693.24 : x
  2. Step 2: Convert to fraction form
    642,061.23/886,073.22 = 351,693.24/x
  3. Step 3: Cross multiply
    642,061.23x = 886,073.22 × 351,693.24
  4. Step 4: Simplify right side
    642,061.23x = 311,625,961,619.03
  5. Step 5: Solve for x
    x = 311,625,961,619.03/642,061.23
  6. Step 6: Final answer
    x = 485,352.40

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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.