Home / 915,922.82-1,263,146.09-571,790.52

Finding the Fourth Proportional to 915,922.82, 1,263,146.09 and 571,790.52

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Solution

The fourth proportional to 915,922.82, 1,263,146.09 and 571,790.52 is: 788,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,922.82 : 1,263,146.09 = 571,790.52 : x
  2. Step 2: Convert to fraction form
    915,922.82/1,263,146.09 = 571,790.52/x
  3. Step 3: Cross multiply
    915,922.82x = 1,263,146.09 × 571,790.52
  4. Step 4: Simplify right side
    915,922.82x = 722,254,956,778.11
  5. Step 5: Solve for x
    x = 722,254,956,778.11/915,922.82
  6. Step 6: Final answer
    x = 788,554.39

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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.