Home / 843,205.40-1,264,370.70-310,452.20

Finding the Fourth Proportional to 843,205.40, 1,264,370.70 and 310,452.20

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Solution

The fourth proportional to 843,205.40, 1,264,370.70 and 310,452.20 is: 465,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,205.40 : 1,264,370.70 = 310,452.20 : x
  2. Step 2: Convert to fraction form
    843,205.40/1,264,370.70 = 310,452.20/x
  3. Step 3: Cross multiply
    843,205.40x = 1,264,370.70 × 310,452.20
  4. Step 4: Simplify right side
    843,205.40x = 392,526,665,430.54
  5. Step 5: Solve for x
    x = 392,526,665,430.54/843,205.40
  6. Step 6: Final answer
    x = 465,517.26

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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.