Home / 386,200.80-579,301.20-346,834.80

Finding the Fourth Proportional to 386,200.80, 579,301.20 and 346,834.80

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Solution

The fourth proportional to 386,200.80, 579,301.20 and 346,834.80 is: 520,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,200.80 : 579,301.20 = 346,834.80 : x
  2. Step 2: Convert to fraction form
    386,200.80/579,301.20 = 346,834.80/x
  3. Step 3: Cross multiply
    386,200.80x = 579,301.20 × 346,834.80
  4. Step 4: Simplify right side
    386,200.80x = 200,921,815,841.76
  5. Step 5: Solve for x
    x = 200,921,815,841.76/386,200.80
  6. Step 6: Final answer
    x = 520,252.20

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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.