Home / 651,212.20-976,818.30-296,918.20

Finding the Fourth Proportional to 651,212.20, 976,818.30 and 296,918.20

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Solution

The fourth proportional to 651,212.20, 976,818.30 and 296,918.20 is: 445,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,212.20 : 976,818.30 = 296,918.20 : x
  2. Step 2: Convert to fraction form
    651,212.20/976,818.30 = 296,918.20/x
  3. Step 3: Cross multiply
    651,212.20x = 976,818.30 × 296,918.20
  4. Step 4: Simplify right side
    651,212.20x = 290,035,131,363.06
  5. Step 5: Solve for x
    x = 290,035,131,363.06/651,212.20
  6. Step 6: Final answer
    x = 445,377.30

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Double scale
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Similar ratio
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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.