Home / 670,631.10-1,005,946.65-221,421.30

Finding the Fourth Proportional to 670,631.10, 1,005,946.65 and 221,421.30

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Solution

The fourth proportional to 670,631.10, 1,005,946.65 and 221,421.30 is: 332,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,631.10 : 1,005,946.65 = 221,421.30 : x
  2. Step 2: Convert to fraction form
    670,631.10/1,005,946.65 = 221,421.30/x
  3. Step 3: Cross multiply
    670,631.10x = 1,005,946.65 × 221,421.30
  4. Step 4: Simplify right side
    670,631.10x = 222,738,014,973.65
  5. Step 5: Solve for x
    x = 222,738,014,973.65/670,631.10
  6. Step 6: Final answer
    x = 332,131.95

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Similar ratio
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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.