Home / 829,209.78-1,243,821.63-230,217.65

Finding the Fourth Proportional to 829,209.78, 1,243,821.63 and 230,217.65

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Solution

The fourth proportional to 829,209.78, 1,243,821.63 and 230,217.65 is: 345,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,209.78 : 1,243,821.63 = 230,217.65 : x
  2. Step 2: Convert to fraction form
    829,209.78/1,243,821.63 = 230,217.65/x
  3. Step 3: Cross multiply
    829,209.78x = 1,243,821.63 × 230,217.65
  4. Step 4: Simplify right side
    829,209.78x = 286,349,686,458.66
  5. Step 5: Solve for x
    x = 286,349,686,458.66/829,209.78
  6. Step 6: Final answer
    x = 345,328.40

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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.