Home / 780,427.06-1,170,072.87-527,079.52

Finding the Fourth Proportional to 780,427.06, 1,170,072.87 and 527,079.52

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Solution

The fourth proportional to 780,427.06, 1,170,072.87 and 527,079.52 is: 790,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,427.06 : 1,170,072.87 = 527,079.52 : x
  2. Step 2: Convert to fraction form
    780,427.06/1,170,072.87 = 527,079.52/x
  3. Step 3: Cross multiply
    780,427.06x = 1,170,072.87 × 527,079.52
  4. Step 4: Simplify right side
    780,427.06x = 616,721,446,684.62
  5. Step 5: Solve for x
    x = 616,721,446,684.62/780,427.06
  6. Step 6: Final answer
    x = 790,235.86

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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.