Home / 690,733.45-1,036,240.30-217,308.70

Finding the Fourth Proportional to 690,733.45, 1,036,240.30 and 217,308.70

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Solution

The fourth proportional to 690,733.45, 1,036,240.30 and 217,308.70 is: 326,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,733.45 : 1,036,240.30 = 217,308.70 : x
  2. Step 2: Convert to fraction form
    690,733.45/1,036,240.30 = 217,308.70/x
  3. Step 3: Cross multiply
    690,733.45x = 1,036,240.30 × 217,308.70
  4. Step 4: Simplify right side
    690,733.45x = 225,184,032,480.61
  5. Step 5: Solve for x
    x = 225,184,032,480.61/690,733.45
  6. Step 6: Final answer
    x = 326,007.13

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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.