Home / 645,799.46-968,776.95-213,531.62

Finding the Fourth Proportional to 645,799.46, 968,776.95 and 213,531.62

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Solution

The fourth proportional to 645,799.46, 968,776.95 and 213,531.62 is: 320,323.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,799.46 : 968,776.95 = 213,531.62 : x
  2. Step 2: Convert to fraction form
    645,799.46/968,776.95 = 213,531.62/x
  3. Step 3: Cross multiply
    645,799.46x = 968,776.95 × 213,531.62
  4. Step 4: Simplify right side
    645,799.46x = 206,864,511,552.16
  5. Step 5: Solve for x
    x = 206,864,511,552.16/645,799.46
  6. Step 6: Final answer
    x = 320,323.14

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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.