Home / 612,772.20-845,613.36-340,834.23

Finding the Fourth Proportional to 612,772.20, 845,613.36 and 340,834.23

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Solution

The fourth proportional to 612,772.20, 845,613.36 and 340,834.23 is: 470,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,772.20 : 845,613.36 = 340,834.23 : x
  2. Step 2: Convert to fraction form
    612,772.20/845,613.36 = 340,834.23/x
  3. Step 3: Cross multiply
    612,772.20x = 845,613.36 × 340,834.23
  4. Step 4: Simplify right side
    612,772.20x = 288,213,978,433.31
  5. Step 5: Solve for x
    x = 288,213,978,433.31/612,772.20
  6. Step 6: Final answer
    x = 470,344.41

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1.5x scale

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.