Home / 691,127.20-1,036,690.80-292,218.40

Finding the Fourth Proportional to 691,127.20, 1,036,690.80 and 292,218.40

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Solution

The fourth proportional to 691,127.20, 1,036,690.80 and 292,218.40 is: 438,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,127.20 : 1,036,690.80 = 292,218.40 : x
  2. Step 2: Convert to fraction form
    691,127.20/1,036,690.80 = 292,218.40/x
  3. Step 3: Cross multiply
    691,127.20x = 1,036,690.80 × 292,218.40
  4. Step 4: Simplify right side
    691,127.20x = 302,940,126,870.72
  5. Step 5: Solve for x
    x = 302,940,126,870.72/691,127.20
  6. Step 6: Final answer
    x = 438,327.60

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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.