Home / 743,961.18-1,026,672.39-404,428.62

Finding the Fourth Proportional to 743,961.18, 1,026,672.39 and 404,428.62

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Solution

The fourth proportional to 743,961.18, 1,026,672.39 and 404,428.62 is: 558,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,961.18 : 1,026,672.39 = 404,428.62 : x
  2. Step 2: Convert to fraction form
    743,961.18/1,026,672.39 = 404,428.62/x
  3. Step 3: Cross multiply
    743,961.18x = 1,026,672.39 × 404,428.62
  4. Step 4: Simplify right side
    743,961.18x = 415,215,697,879.80
  5. Step 5: Solve for x
    x = 415,215,697,879.80/743,961.18
  6. Step 6: Final answer
    x = 558,114.74

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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.