Home / 854,436.94-1,280,534.22-628,740.58

Finding the Fourth Proportional to 854,436.94, 1,280,534.22 and 628,740.58

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Solution

The fourth proportional to 854,436.94, 1,280,534.22 and 628,740.58 is: 942,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,436.94 : 1,280,534.22 = 628,740.58 : x
  2. Step 2: Convert to fraction form
    854,436.94/1,280,534.22 = 628,740.58/x
  3. Step 3: Cross multiply
    854,436.94x = 1,280,534.22 × 628,740.58
  4. Step 4: Simplify right side
    854,436.94x = 805,123,828,192.65
  5. Step 5: Solve for x
    x = 805,123,828,192.65/854,436.94
  6. Step 6: Final answer
    x = 942,285.84

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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.