Home / 678,398.67-1,017,819.12-341,265.33

Finding the Fourth Proportional to 678,398.67, 1,017,819.12 and 341,265.33

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Solution

The fourth proportional to 678,398.67, 1,017,819.12 and 341,265.33 is: 512,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,398.67 : 1,017,819.12 = 341,265.33 : x
  2. Step 2: Convert to fraction form
    678,398.67/1,017,819.12 = 341,265.33/x
  3. Step 3: Cross multiply
    678,398.67x = 1,017,819.12 × 341,265.33
  4. Step 4: Simplify right side
    678,398.67x = 347,346,377,867.11
  5. Step 5: Solve for x
    x = 347,346,377,867.11/678,398.67
  6. Step 6: Final answer
    x = 512,009.23

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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.