Home / 1,389,233.70-2,083,850.55-490,668.30

Finding the Fourth Proportional to 1,389,233.70, 2,083,850.55 and 490,668.30

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Solution

The fourth proportional to 1,389,233.70, 2,083,850.55 and 490,668.30 is: 736,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,233.70 : 2,083,850.55 = 490,668.30 : x
  2. Step 2: Convert to fraction form
    1,389,233.70/2,083,850.55 = 490,668.30/x
  3. Step 3: Cross multiply
    1,389,233.70x = 2,083,850.55 × 490,668.30
  4. Step 4: Simplify right side
    1,389,233.70x = 1,022,479,406,822.57
  5. Step 5: Solve for x
    x = 1,022,479,406,822.57/1,389,233.70
  6. Step 6: Final answer
    x = 736,002.45

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Double scale
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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.