Home / 1,108,909.40-1,663,364.10-880,586.60

Finding the Fourth Proportional to 1,108,909.40, 1,663,364.10 and 880,586.60

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Solution

The fourth proportional to 1,108,909.40, 1,663,364.10 and 880,586.60 is: 1,320,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,909.40 : 1,663,364.10 = 880,586.60 : x
  2. Step 2: Convert to fraction form
    1,108,909.40/1,663,364.10 = 880,586.60/x
  3. Step 3: Cross multiply
    1,108,909.40x = 1,663,364.10 × 880,586.60
  4. Step 4: Simplify right side
    1,108,909.40x = 1,464,736,137,381.06
  5. Step 5: Solve for x
    x = 1,464,736,137,381.06/1,108,909.40
  6. Step 6: Final answer
    x = 1,320,879.90

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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.