Home / 1,170,072.90-1,755,692.55-665,021.70

Finding the Fourth Proportional to 1,170,072.90, 1,755,692.55 and 665,021.70

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Solution

The fourth proportional to 1,170,072.90, 1,755,692.55 and 665,021.70 is: 997,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,072.90 : 1,755,692.55 = 665,021.70 : x
  2. Step 2: Convert to fraction form
    1,170,072.90/1,755,692.55 = 665,021.70/x
  3. Step 3: Cross multiply
    1,170,072.90x = 1,755,692.55 × 665,021.70
  4. Step 4: Simplify right side
    1,170,072.90x = 1,167,573,644,278.34
  5. Step 5: Solve for x
    x = 1,167,573,644,278.34/1,170,072.90
  6. Step 6: Final answer
    x = 997,864.02

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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.