Home / 1,325,390.60-1,988,085.90-852,609.80

Finding the Fourth Proportional to 1,325,390.60, 1,988,085.90 and 852,609.80

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Solution

The fourth proportional to 1,325,390.60, 1,988,085.90 and 852,609.80 is: 1,278,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,390.60 : 1,988,085.90 = 852,609.80 : x
  2. Step 2: Convert to fraction form
    1,325,390.60/1,988,085.90 = 852,609.80/x
  3. Step 3: Cross multiply
    1,325,390.60x = 1,988,085.90 × 852,609.80
  4. Step 4: Simplify right side
    1,325,390.60x = 1,695,061,521,581.82
  5. Step 5: Solve for x
    x = 1,695,061,521,581.82/1,325,390.60
  6. Step 6: Final answer
    x = 1,278,914.70

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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.