Home / 1,431,910.50-1,975,985.91-787,326.18

Finding the Fourth Proportional to 1,431,910.50, 1,975,985.91 and 787,326.18

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Solution

The fourth proportional to 1,431,910.50, 1,975,985.91 and 787,326.18 is: 1,086,482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,910.50 : 1,975,985.91 = 787,326.18 : x
  2. Step 2: Convert to fraction form
    1,431,910.50/1,975,985.91 = 787,326.18/x
  3. Step 3: Cross multiply
    1,431,910.50x = 1,975,985.91 × 787,326.18
  4. Step 4: Simplify right side
    1,431,910.50x = 1,555,745,438,254.12
  5. Step 5: Solve for x
    x = 1,555,745,438,254.12/1,431,910.50
  6. Step 6: Final answer
    x = 1,086,482.32

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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.