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Finding the Fourth Proportional to 613,920.39, 847,235.67 and 341,988.22

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Solution

The fourth proportional to 613,920.39, 847,235.67 and 341,988.22 is: 471,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,920.39 : 847,235.67 = 341,988.22 : x
  2. Step 2: Convert to fraction form
    613,920.39/847,235.67 = 341,988.22/x
  3. Step 3: Cross multiply
    613,920.39x = 847,235.67 × 341,988.22
  4. Step 4: Simplify right side
    613,920.39x = 289,744,613,714.70
  5. Step 5: Solve for x
    x = 289,744,613,714.70/613,920.39
  6. Step 6: Final answer
    x = 471,957.96

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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.