Home / 1,218,539.21-1,681,636.67-674,675.04

Finding the Fourth Proportional to 1,218,539.21, 1,681,636.67 and 674,675.04

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Solution

The fourth proportional to 1,218,539.21, 1,681,636.67 and 674,675.04 is: 931,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,539.21 : 1,681,636.67 = 674,675.04 : x
  2. Step 2: Convert to fraction form
    1,218,539.21/1,681,636.67 = 674,675.04/x
  3. Step 3: Cross multiply
    1,218,539.21x = 1,681,636.67 × 674,675.04
  4. Step 4: Simplify right side
    1,218,539.21x = 1,134,558,289,284.40
  5. Step 5: Solve for x
    x = 1,134,558,289,284.40/1,218,539.21
  6. Step 6: Final answer
    x = 931,080.66

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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.