Home / 680,496.08-1,020,057.95-427,957.05

Finding the Fourth Proportional to 680,496.08, 1,020,057.95 and 427,957.05

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Solution

The fourth proportional to 680,496.08, 1,020,057.95 and 427,957.05 is: 641,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,496.08 : 1,020,057.95 = 427,957.05 : x
  2. Step 2: Convert to fraction form
    680,496.08/1,020,057.95 = 427,957.05/x
  3. Step 3: Cross multiply
    680,496.08x = 1,020,057.95 × 427,957.05
  4. Step 4: Simplify right side
    680,496.08x = 436,540,988,971.26
  5. Step 5: Solve for x
    x = 436,540,988,971.26/680,496.08
  6. Step 6: Final answer
    x = 641,504.05

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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.