Home / 694,685.40-1,042,085.70-221,357.40

Finding the Fourth Proportional to 694,685.40, 1,042,085.70 and 221,357.40

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Solution

The fourth proportional to 694,685.40, 1,042,085.70 and 221,357.40 is: 332,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,685.40 : 1,042,085.70 = 221,357.40 : x
  2. Step 2: Convert to fraction form
    694,685.40/1,042,085.70 = 221,357.40/x
  3. Step 3: Cross multiply
    694,685.40x = 1,042,085.70 × 221,357.40
  4. Step 4: Simplify right side
    694,685.40x = 230,673,381,129.18
  5. Step 5: Solve for x
    x = 230,673,381,129.18/694,685.40
  6. Step 6: Final answer
    x = 332,054.45

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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.