Home / 563,913.58-778,128.75-322,211.80

Finding the Fourth Proportional to 563,913.58, 778,128.75 and 322,211.80

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Solution

The fourth proportional to 563,913.58, 778,128.75 and 322,211.80 is: 444,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,913.58 : 778,128.75 = 322,211.80 : x
  2. Step 2: Convert to fraction form
    563,913.58/778,128.75 = 322,211.80/x
  3. Step 3: Cross multiply
    563,913.58x = 778,128.75 × 322,211.80
  4. Step 4: Simplify right side
    563,913.58x = 250,722,261,278.61
  5. Step 5: Solve for x
    x = 250,722,261,278.61/563,913.58
  6. Step 6: Final answer
    x = 444,611.15

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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.