Home / 1,287,886.53-1,931,042.12-614,173.89

Finding the Fourth Proportional to 1,287,886.53, 1,931,042.12 and 614,173.89

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Solution

The fourth proportional to 1,287,886.53, 1,931,042.12 and 614,173.89 is: 920,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,886.53 : 1,931,042.12 = 614,173.89 : x
  2. Step 2: Convert to fraction form
    1,287,886.53/1,931,042.12 = 614,173.89/x
  3. Step 3: Cross multiply
    1,287,886.53x = 1,931,042.12 × 614,173.89
  4. Step 4: Simplify right side
    1,287,886.53x = 1,185,995,647,523.38
  5. Step 5: Solve for x
    x = 1,185,995,647,523.38/1,287,886.53
  6. Step 6: Final answer
    x = 920,885.20

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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.