Home / 998,170.72-1,377,616.08-635,478.72

Finding the Fourth Proportional to 998,170.72, 1,377,616.08 and 635,478.72

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Solution

The fourth proportional to 998,170.72, 1,377,616.08 and 635,478.72 is: 877,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,170.72 : 1,377,616.08 = 635,478.72 : x
  2. Step 2: Convert to fraction form
    998,170.72/1,377,616.08 = 635,478.72/x
  3. Step 3: Cross multiply
    998,170.72x = 1,377,616.08 × 635,478.72
  4. Step 4: Simplify right side
    998,170.72x = 875,445,703,169.82
  5. Step 5: Solve for x
    x = 875,445,703,169.82/998,170.72
  6. Step 6: Final answer
    x = 877,050.07

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1.5x scale

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.