Home / 641,785.42-885,630.17-351,341.29

Finding the Fourth Proportional to 641,785.42, 885,630.17 and 351,341.29

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Solution

The fourth proportional to 641,785.42, 885,630.17 and 351,341.29 is: 484,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,785.42 : 885,630.17 = 351,341.29 : x
  2. Step 2: Convert to fraction form
    641,785.42/885,630.17 = 351,341.29/x
  3. Step 3: Cross multiply
    641,785.42x = 885,630.17 × 351,341.29
  4. Step 4: Simplify right side
    641,785.42x = 311,158,445,055.00
  5. Step 5: Solve for x
    x = 311,158,445,055.00/641,785.42
  6. Step 6: Final answer
    x = 484,832.53

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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.