Home / 1,315,308.30-1,972,962.45-1,199,186.70

Finding the Fourth Proportional to 1,315,308.30, 1,972,962.45 and 1,199,186.70

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Solution

The fourth proportional to 1,315,308.30, 1,972,962.45 and 1,199,186.70 is: 1,798,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,308.30 : 1,972,962.45 = 1,199,186.70 : x
  2. Step 2: Convert to fraction form
    1,315,308.30/1,972,962.45 = 1,199,186.70/x
  3. Step 3: Cross multiply
    1,315,308.30x = 1,972,962.45 × 1,199,186.70
  4. Step 4: Simplify right side
    1,315,308.30x = 2,365,950,329,639.42
  5. Step 5: Solve for x
    x = 2,365,950,329,639.42/1,315,308.30
  6. Step 6: Final answer
    x = 1,798,780.05

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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.