Home / 678,535.62-1,017,587.72-223,021.79

Finding the Fourth Proportional to 678,535.62, 1,017,587.72 and 223,021.79

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Solution

The fourth proportional to 678,535.62, 1,017,587.72 and 223,021.79 is: 334,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,535.62 : 1,017,587.72 = 223,021.79 : x
  2. Step 2: Convert to fraction form
    678,535.62/1,017,587.72 = 223,021.79/x
  3. Step 3: Cross multiply
    678,535.62x = 1,017,587.72 × 223,021.79
  4. Step 4: Simplify right side
    678,535.62x = 226,944,236,225.28
  5. Step 5: Solve for x
    x = 226,944,236,225.28/678,535.62
  6. Step 6: Final answer
    x = 334,461.79

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Double scale
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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.