Home / 1,108,596.70-1,662,895.05-686,503.90

Finding the Fourth Proportional to 1,108,596.70, 1,662,895.05 and 686,503.90

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Solution

The fourth proportional to 1,108,596.70, 1,662,895.05 and 686,503.90 is: 1,029,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,596.70 : 1,662,895.05 = 686,503.90 : x
  2. Step 2: Convert to fraction form
    1,108,596.70/1,662,895.05 = 686,503.90/x
  3. Step 3: Cross multiply
    1,108,596.70x = 1,662,895.05 × 686,503.90
  4. Step 4: Simplify right side
    1,108,596.70x = 1,141,583,937,115.70
  5. Step 5: Solve for x
    x = 1,141,583,937,115.70/1,108,596.70
  6. Step 6: Final answer
    x = 1,029,755.85

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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.