Home / 690,710.34-1,036,205.65-217,285.59

Finding the Fourth Proportional to 690,710.34, 1,036,205.65 and 217,285.59

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Solution

The fourth proportional to 690,710.34, 1,036,205.65 and 217,285.59 is: 325,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,710.34 : 1,036,205.65 = 217,285.59 : x
  2. Step 2: Convert to fraction form
    690,710.34/1,036,205.65 = 217,285.59/x
  3. Step 3: Cross multiply
    690,710.34x = 1,036,205.65 × 217,285.59
  4. Step 4: Simplify right side
    690,710.34x = 225,152,556,021.58
  5. Step 5: Solve for x
    x = 225,152,556,021.58/690,710.34
  6. Step 6: Final answer
    x = 325,972.47

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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.