Home / 900,183.84-1,350,940.32-426,870.78

Finding the Fourth Proportional to 900,183.84, 1,350,940.32 and 426,870.78

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Solution

The fourth proportional to 900,183.84, 1,350,940.32 and 426,870.78 is: 640,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,183.84 : 1,350,940.32 = 426,870.78 : x
  2. Step 2: Convert to fraction form
    900,183.84/1,350,940.32 = 426,870.78/x
  3. Step 3: Cross multiply
    900,183.84x = 1,350,940.32 × 426,870.78
  4. Step 4: Simplify right side
    900,183.84x = 576,676,948,131.85
  5. Step 5: Solve for x
    x = 576,676,948,131.85/900,183.84
  6. Step 6: Final answer
    x = 640,621.31

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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.