Home / 1,260,475.72-1,739,461.90-687,528.19

Finding the Fourth Proportional to 1,260,475.72, 1,739,461.90 and 687,528.19

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Solution

The fourth proportional to 1,260,475.72, 1,739,461.90 and 687,528.19 is: 948,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,475.72 : 1,739,461.90 = 687,528.19 : x
  2. Step 2: Convert to fraction form
    1,260,475.72/1,739,461.90 = 687,528.19/x
  3. Step 3: Cross multiply
    1,260,475.72x = 1,739,461.90 × 687,528.19
  4. Step 4: Simplify right side
    1,260,475.72x = 1,195,929,091,680.96
  5. Step 5: Solve for x
    x = 1,195,929,091,680.96/1,260,475.72
  6. Step 6: Final answer
    x = 948,791.85

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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.