Home / 805,122.74-1,111,072.20-442,578.08

Finding the Fourth Proportional to 805,122.74, 1,111,072.20 and 442,578.08

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Solution

The fourth proportional to 805,122.74, 1,111,072.20 and 442,578.08 is: 610,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,122.74 : 1,111,072.20 = 442,578.08 : x
  2. Step 2: Convert to fraction form
    805,122.74/1,111,072.20 = 442,578.08/x
  3. Step 3: Cross multiply
    805,122.74x = 1,111,072.20 × 442,578.08
  4. Step 4: Simplify right side
    805,122.74x = 491,736,201,017.38
  5. Step 5: Solve for x
    x = 491,736,201,017.38/805,122.74
  6. Step 6: Final answer
    x = 610,759.30

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Double scale
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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.