Home / 1,209,062.10-1,811,519.55-788,121.30

Finding the Fourth Proportional to 1,209,062.10, 1,811,519.55 and 788,121.30

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Solution

The fourth proportional to 1,209,062.10, 1,811,519.55 and 788,121.30 is: 1,180,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,062.10 : 1,811,519.55 = 788,121.30 : x
  2. Step 2: Convert to fraction form
    1,209,062.10/1,811,519.55 = 788,121.30/x
  3. Step 3: Cross multiply
    1,209,062.10x = 1,811,519.55 × 788,121.30
  4. Step 4: Simplify right side
    1,209,062.10x = 1,427,697,142,721.42
  5. Step 5: Solve for x
    x = 1,427,697,142,721.42/1,209,062.10
  6. Step 6: Final answer
    x = 1,180,830.28

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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.