Home / 690,706.65-1,036,200.11-217,281.90

Finding the Fourth Proportional to 690,706.65, 1,036,200.11 and 217,281.90

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Solution

The fourth proportional to 690,706.65, 1,036,200.11 and 217,281.90 is: 325,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,706.65 : 1,036,200.11 = 217,281.90 : x
  2. Step 2: Convert to fraction form
    690,706.65/1,036,200.11 = 217,281.90/x
  3. Step 3: Cross multiply
    690,706.65x = 1,036,200.11 × 217,281.90
  4. Step 4: Simplify right side
    690,706.65x = 225,147,525,651.72
  5. Step 5: Solve for x
    x = 225,147,525,651.72/690,706.65
  6. Step 6: Final answer
    x = 325,966.93

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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.