Home / 1,170,078.40-1,755,700.80-665,027.20

Finding the Fourth Proportional to 1,170,078.40, 1,755,700.80 and 665,027.20

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Solution

The fourth proportional to 1,170,078.40, 1,755,700.80 and 665,027.20 is: 997,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,078.40 : 1,755,700.80 = 665,027.20 : x
  2. Step 2: Convert to fraction form
    1,170,078.40/1,755,700.80 = 665,027.20/x
  3. Step 3: Cross multiply
    1,170,078.40x = 1,755,700.80 × 665,027.20
  4. Step 4: Simplify right side
    1,170,078.40x = 1,167,588,787,061.76
  5. Step 5: Solve for x
    x = 1,167,588,787,061.76/1,170,078.40
  6. Step 6: Final answer
    x = 997,872.27

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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.