Home / 690,708.98-1,036,203.59-217,284.23

Finding the Fourth Proportional to 690,708.98, 1,036,203.59 and 217,284.23

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Solution

The fourth proportional to 690,708.98, 1,036,203.59 and 217,284.23 is: 325,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,708.98 : 1,036,203.59 = 217,284.23 : x
  2. Step 2: Convert to fraction form
    690,708.98/1,036,203.59 = 217,284.23/x
  3. Step 3: Cross multiply
    690,708.98x = 1,036,203.59 × 217,284.23
  4. Step 4: Simplify right side
    690,708.98x = 225,150,692,908.95
  5. Step 5: Solve for x
    x = 225,150,692,908.95/690,708.98
  6. Step 6: Final answer
    x = 325,970.42

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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.