Home / 621,465.03-857,613.30-349,532.85

Finding the Fourth Proportional to 621,465.03, 857,613.30 and 349,532.85

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Solution

The fourth proportional to 621,465.03, 857,613.30 and 349,532.85 is: 482,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,465.03 : 857,613.30 = 349,532.85 : x
  2. Step 2: Convert to fraction form
    621,465.03/857,613.30 = 349,532.85/x
  3. Step 3: Cross multiply
    621,465.03x = 857,613.30 × 349,532.85
  4. Step 4: Simplify right side
    621,465.03x = 299,764,020,946.91
  5. Step 5: Solve for x
    x = 299,764,020,946.91/621,465.03
  6. Step 6: Final answer
    x = 482,350.59

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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.