Home / 865,181.12-1,296,928.13-345,701.52

Finding the Fourth Proportional to 865,181.12, 1,296,928.13 and 345,701.52

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Solution

The fourth proportional to 865,181.12, 1,296,928.13 and 345,701.52 is: 518,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,181.12 : 1,296,928.13 = 345,701.52 : x
  2. Step 2: Convert to fraction form
    865,181.12/1,296,928.13 = 345,701.52/x
  3. Step 3: Cross multiply
    865,181.12x = 1,296,928.13 × 345,701.52
  4. Step 4: Simplify right side
    865,181.12x = 448,350,024,143.25
  5. Step 5: Solve for x
    x = 448,350,024,143.25/865,181.12
  6. Step 6: Final answer
    x = 518,215.22

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1.5x scale

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.