Home / 486,212.31-729,263.78-186,482.61

Finding the Fourth Proportional to 486,212.31, 729,263.78 and 186,482.61

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Solution

The fourth proportional to 486,212.31, 729,263.78 and 186,482.61 is: 279,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,212.31 : 729,263.78 = 186,482.61 : x
  2. Step 2: Convert to fraction form
    486,212.31/729,263.78 = 186,482.61/x
  3. Step 3: Cross multiply
    486,212.31x = 729,263.78 × 186,482.61
  4. Step 4: Simplify right side
    486,212.31x = 135,995,012,140.45
  5. Step 5: Solve for x
    x = 135,995,012,140.45/486,212.31
  6. Step 6: Final answer
    x = 279,702.94

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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.