Home / 692,067.80-1,038,101.70-318,819.80

Finding the Fourth Proportional to 692,067.80, 1,038,101.70 and 318,819.80

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Solution

The fourth proportional to 692,067.80, 1,038,101.70 and 318,819.80 is: 478,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,067.80 : 1,038,101.70 = 318,819.80 : x
  2. Step 2: Convert to fraction form
    692,067.80/1,038,101.70 = 318,819.80/x
  3. Step 3: Cross multiply
    692,067.80x = 1,038,101.70 × 318,819.80
  4. Step 4: Simplify right side
    692,067.80x = 330,967,376,373.66
  5. Step 5: Solve for x
    x = 330,967,376,373.66/692,067.80
  6. Step 6: Final answer
    x = 478,229.70

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Similar ratio
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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.