Home / 1,218,554.30-1,681,657.52-674,690.10

Finding the Fourth Proportional to 1,218,554.30, 1,681,657.52 and 674,690.10

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Solution

The fourth proportional to 1,218,554.30, 1,681,657.52 and 674,690.10 is: 931,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,554.30 : 1,681,657.52 = 674,690.10 : x
  2. Step 2: Convert to fraction form
    1,218,554.30/1,681,657.52 = 674,690.10/x
  3. Step 3: Cross multiply
    1,218,554.30x = 1,681,657.52 × 674,690.10
  4. Step 4: Simplify right side
    1,218,554.30x = 1,134,597,676,961.10
  5. Step 5: Solve for x
    x = 1,134,597,676,961.10/1,218,554.30
  6. Step 6: Final answer
    x = 931,101.45

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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.