Home / 875,194.30-1,312,791.45-342,538.30

Finding the Fourth Proportional to 875,194.30, 1,312,791.45 and 342,538.30

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Solution

The fourth proportional to 875,194.30, 1,312,791.45 and 342,538.30 is: 513,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,194.30 : 1,312,791.45 = 342,538.30 : x
  2. Step 2: Convert to fraction form
    875,194.30/1,312,791.45 = 342,538.30/x
  3. Step 3: Cross multiply
    875,194.30x = 1,312,791.45 × 342,538.30
  4. Step 4: Simplify right side
    875,194.30x = 449,681,351,537.54
  5. Step 5: Solve for x
    x = 449,681,351,537.54/875,194.30
  6. Step 6: Final answer
    x = 513,807.45

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Double scale
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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.