Home / 866,839.60-1,300,263.45-305,874.10

Finding the Fourth Proportional to 866,839.60, 1,300,263.45 and 305,874.10

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Solution

The fourth proportional to 866,839.60, 1,300,263.45 and 305,874.10 is: 458,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,839.60 : 1,300,263.45 = 305,874.10 : x
  2. Step 2: Convert to fraction form
    866,839.60/1,300,263.45 = 305,874.10/x
  3. Step 3: Cross multiply
    866,839.60x = 1,300,263.45 × 305,874.10
  4. Step 4: Simplify right side
    866,839.60x = 397,716,912,531.65
  5. Step 5: Solve for x
    x = 397,716,912,531.65/866,839.60
  6. Step 6: Final answer
    x = 458,812.58

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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.