Home / 908,121.20-1,362,473.40-402,486.80

Finding the Fourth Proportional to 908,121.20, 1,362,473.40 and 402,486.80

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Solution

The fourth proportional to 908,121.20, 1,362,473.40 and 402,486.80 is: 603,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,121.20 : 1,362,473.40 = 402,486.80 : x
  2. Step 2: Convert to fraction form
    908,121.20/1,362,473.40 = 402,486.80/x
  3. Step 3: Cross multiply
    908,121.20x = 1,362,473.40 × 402,486.80
  4. Step 4: Simplify right side
    908,121.20x = 548,377,558,851.12
  5. Step 5: Solve for x
    x = 548,377,558,851.12/908,121.20
  6. Step 6: Final answer
    x = 603,859.44

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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.