Home / 758,261.25-1,138,266.68-385,071.57

Finding the Fourth Proportional to 758,261.25, 1,138,266.68 and 385,071.57

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Solution

The fourth proportional to 758,261.25, 1,138,266.68 and 385,071.57 is: 578,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,261.25 : 1,138,266.68 = 385,071.57 : x
  2. Step 2: Convert to fraction form
    758,261.25/1,138,266.68 = 385,071.57/x
  3. Step 3: Cross multiply
    758,261.25x = 1,138,266.68 × 385,071.57
  4. Step 4: Simplify right side
    758,261.25x = 438,314,135,620.93
  5. Step 5: Solve for x
    x = 438,314,135,620.93/758,261.25
  6. Step 6: Final answer
    x = 578,051.61

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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.