Home / 486,112.68-670,735.32-279,341.10

Finding the Fourth Proportional to 486,112.68, 670,735.32 and 279,341.10

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Solution

The fourth proportional to 486,112.68, 670,735.32 and 279,341.10 is: 385,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,112.68 : 670,735.32 = 279,341.10 : x
  2. Step 2: Convert to fraction form
    486,112.68/670,735.32 = 279,341.10/x
  3. Step 3: Cross multiply
    486,112.68x = 670,735.32 × 279,341.10
  4. Step 4: Simplify right side
    486,112.68x = 187,363,942,097.65
  5. Step 5: Solve for x
    x = 187,363,942,097.65/486,112.68
  6. Step 6: Final answer
    x = 385,433.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.