Home / 691,102.03-1,036,793.98-391,716.31

Finding the Fourth Proportional to 691,102.03, 1,036,793.98 and 391,716.31

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Solution

The fourth proportional to 691,102.03, 1,036,793.98 and 391,716.31 is: 587,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,102.03 : 1,036,793.98 = 391,716.31 : x
  2. Step 2: Convert to fraction form
    691,102.03/1,036,793.98 = 391,716.31/x
  3. Step 3: Cross multiply
    691,102.03x = 1,036,793.98 × 391,716.31
  4. Step 4: Simplify right side
    691,102.03x = 406,129,112,075.81
  5. Step 5: Solve for x
    x = 406,129,112,075.81/691,102.03
  6. Step 6: Final answer
    x = 587,654.35

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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.