Home / 1,170,071.70-1,755,107.55-638,630.70

Finding the Fourth Proportional to 1,170,071.70, 1,755,107.55 and 638,630.70

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Solution

The fourth proportional to 1,170,071.70, 1,755,107.55 and 638,630.70 is: 957,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,071.70 : 1,755,107.55 = 638,630.70 : x
  2. Step 2: Convert to fraction form
    1,170,071.70/1,755,107.55 = 638,630.70/x
  3. Step 3: Cross multiply
    1,170,071.70x = 1,755,107.55 × 638,630.70
  4. Step 4: Simplify right side
    1,170,071.70x = 1,120,865,563,231.78
  5. Step 5: Solve for x
    x = 1,120,865,563,231.78/1,170,071.70
  6. Step 6: Final answer
    x = 957,946.05

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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.