Home / 1,985,992.90-2,976,656.55-918,780.64

Finding the Fourth Proportional to 1,985,992.90, 2,976,656.55 and 918,780.64

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Solution

The fourth proportional to 1,985,992.90, 2,976,656.55 and 918,780.64 is: 1,377,091.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,992.90 : 2,976,656.55 = 918,780.64 : x
  2. Step 2: Convert to fraction form
    1,985,992.90/2,976,656.55 = 918,780.64/x
  3. Step 3: Cross multiply
    1,985,992.90x = 2,976,656.55 × 918,780.64
  4. Step 4: Simplify right side
    1,985,992.90x = 2,734,894,410,069.19
  5. Step 5: Solve for x
    x = 2,734,894,410,069.19/1,985,992.90
  6. Step 6: Final answer
    x = 1,377,091.74

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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.