Home / 1,992,807.90-2,989,211.85-794,113.20

Finding the Fourth Proportional to 1,992,807.90, 2,989,211.85 and 794,113.20

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Solution

The fourth proportional to 1,992,807.90, 2,989,211.85 and 794,113.20 is: 1,191,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,807.90 : 2,989,211.85 = 794,113.20 : x
  2. Step 2: Convert to fraction form
    1,992,807.90/2,989,211.85 = 794,113.20/x
  3. Step 3: Cross multiply
    1,992,807.90x = 2,989,211.85 × 794,113.20
  4. Step 4: Simplify right side
    1,992,807.90x = 2,373,772,587,681.42
  5. Step 5: Solve for x
    x = 2,373,772,587,681.42/1,992,807.90
  6. Step 6: Final answer
    x = 1,191,169.80

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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.