Home / 1,220,814.78-1,684,642.26-676,930.42

Finding the Fourth Proportional to 1,220,814.78, 1,684,642.26 and 676,930.42

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Solution

The fourth proportional to 1,220,814.78, 1,684,642.26 and 676,930.42 is: 934,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,814.78 : 1,684,642.26 = 676,930.42 : x
  2. Step 2: Convert to fraction form
    1,220,814.78/1,684,642.26 = 676,930.42/x
  3. Step 3: Cross multiply
    1,220,814.78x = 1,684,642.26 × 676,930.42
  4. Step 4: Simplify right side
    1,220,814.78x = 1,140,385,592,611.55
  5. Step 5: Solve for x
    x = 1,140,385,592,611.55/1,220,814.78
  6. Step 6: Final answer
    x = 934,118.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.