Home / 690,709.34-1,036,204.15-217,284.59

Finding the Fourth Proportional to 690,709.34, 1,036,204.15 and 217,284.59

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Solution

The fourth proportional to 690,709.34, 1,036,204.15 and 217,284.59 is: 325,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,709.34 : 1,036,204.15 = 217,284.59 : x
  2. Step 2: Convert to fraction form
    690,709.34/1,036,204.15 = 217,284.59/x
  3. Step 3: Cross multiply
    690,709.34x = 1,036,204.15 × 217,284.59
  4. Step 4: Simplify right side
    690,709.34x = 225,151,193,889.05
  5. Step 5: Solve for x
    x = 225,151,193,889.05/690,709.34
  6. Step 6: Final answer
    x = 325,970.97

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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.