Home / 971,678.72-1,457,352.84-261,548.48

Finding the Fourth Proportional to 971,678.72, 1,457,352.84 and 261,548.48

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Solution

The fourth proportional to 971,678.72, 1,457,352.84 and 261,548.48 is: 392,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,678.72 : 1,457,352.84 = 261,548.48 : x
  2. Step 2: Convert to fraction form
    971,678.72/1,457,352.84 = 261,548.48/x
  3. Step 3: Cross multiply
    971,678.72x = 1,457,352.84 × 261,548.48
  4. Step 4: Simplify right side
    971,678.72x = 381,168,420,125.68
  5. Step 5: Solve for x
    x = 381,168,420,125.68/971,678.72
  6. Step 6: Final answer
    x = 392,278.24

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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.