Home / 1,511,641.82-2,086,302.63-891,515.15

Finding the Fourth Proportional to 1,511,641.82, 2,086,302.63 and 891,515.15

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Solution

The fourth proportional to 1,511,641.82, 2,086,302.63 and 891,515.15 is: 1,230,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,641.82 : 2,086,302.63 = 891,515.15 : x
  2. Step 2: Convert to fraction form
    1,511,641.82/2,086,302.63 = 891,515.15/x
  3. Step 3: Cross multiply
    1,511,641.82x = 2,086,302.63 × 891,515.15
  4. Step 4: Simplify right side
    1,511,641.82x = 1,859,970,402,865.15
  5. Step 5: Solve for x
    x = 1,859,970,402,865.15/1,511,641.82
  6. Step 6: Final answer
    x = 1,230,430.63

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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.