Home / 918,072.40-1,376,719.80-444,902.80

Finding the Fourth Proportional to 918,072.40, 1,376,719.80 and 444,902.80

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Solution

The fourth proportional to 918,072.40, 1,376,719.80 and 444,902.80 is: 667,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,072.40 : 1,376,719.80 = 444,902.80 : x
  2. Step 2: Convert to fraction form
    918,072.40/1,376,719.80 = 444,902.80/x
  3. Step 3: Cross multiply
    918,072.40x = 1,376,719.80 × 444,902.80
  4. Step 4: Simplify right side
    918,072.40x = 612,506,493,835.44
  5. Step 5: Solve for x
    x = 612,506,493,835.44/918,072.40
  6. Step 6: Final answer
    x = 667,165.79

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1.5x scale

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.