Home / 971,334.96-1,456,890.36-261,307.20

Finding the Fourth Proportional to 971,334.96, 1,456,890.36 and 261,307.20

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Solution

The fourth proportional to 971,334.96, 1,456,890.36 and 261,307.20 is: 391,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,334.96 : 1,456,890.36 = 261,307.20 : x
  2. Step 2: Convert to fraction form
    971,334.96/1,456,890.36 = 261,307.20/x
  3. Step 3: Cross multiply
    971,334.96x = 1,456,890.36 × 261,307.20
  4. Step 4: Simplify right side
    971,334.96x = 380,695,940,678.59
  5. Step 5: Solve for x
    x = 380,695,940,678.59/971,334.96
  6. Step 6: Final answer
    x = 391,930.65

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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.