Home / 690,656.22-1,036,144.56-217,329.24

Finding the Fourth Proportional to 690,656.22, 1,036,144.56 and 217,329.24

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Solution

The fourth proportional to 690,656.22, 1,036,144.56 and 217,329.24 is: 326,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,656.22 : 1,036,144.56 = 217,329.24 : x
  2. Step 2: Convert to fraction form
    690,656.22/1,036,144.56 = 217,329.24/x
  3. Step 3: Cross multiply
    690,656.22x = 1,036,144.56 × 217,329.24
  4. Step 4: Simplify right side
    690,656.22x = 225,184,509,754.93
  5. Step 5: Solve for x
    x = 225,184,509,754.93/690,656.22
  6. Step 6: Final answer
    x = 326,044.28

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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.