Home / 690,566.14-953,007.15-380,481.49

Finding the Fourth Proportional to 690,566.14, 953,007.15 and 380,481.49

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Solution

The fourth proportional to 690,566.14, 953,007.15 and 380,481.49 is: 525,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,566.14 : 953,007.15 = 380,481.49 : x
  2. Step 2: Convert to fraction form
    690,566.14/953,007.15 = 380,481.49/x
  3. Step 3: Cross multiply
    690,566.14x = 953,007.15 × 380,481.49
  4. Step 4: Simplify right side
    690,566.14x = 362,601,580,412.65
  5. Step 5: Solve for x
    x = 362,601,580,412.65/690,566.14
  6. Step 6: Final answer
    x = 525,078.71

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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.