Home / 858,110.90-1,287,166.35-818,744.90

Finding the Fourth Proportional to 858,110.90, 1,287,166.35 and 818,744.90

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Solution

The fourth proportional to 858,110.90, 1,287,166.35 and 818,744.90 is: 1,228,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,110.90 : 1,287,166.35 = 818,744.90 : x
  2. Step 2: Convert to fraction form
    858,110.90/1,287,166.35 = 818,744.90/x
  3. Step 3: Cross multiply
    858,110.90x = 1,287,166.35 × 818,744.90
  4. Step 4: Simplify right side
    858,110.90x = 1,053,860,884,514.12
  5. Step 5: Solve for x
    x = 1,053,860,884,514.12/858,110.90
  6. Step 6: Final answer
    x = 1,228,117.35

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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.