Home / 690,591.69-952,967.55-380,480.73

Finding the Fourth Proportional to 690,591.69, 952,967.55 and 380,480.73

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Solution

The fourth proportional to 690,591.69, 952,967.55 and 380,480.73 is: 525,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,591.69 : 952,967.55 = 380,480.73 : x
  2. Step 2: Convert to fraction form
    690,591.69/952,967.55 = 380,480.73/x
  3. Step 3: Cross multiply
    690,591.69x = 952,967.55 × 380,480.73
  4. Step 4: Simplify right side
    690,591.69x = 362,585,789,090.31
  5. Step 5: Solve for x
    x = 362,585,789,090.31/690,591.69
  6. Step 6: Final answer
    x = 525,036.42

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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.