Home / 990,123.40-1,485,185.10-635,829.40

Finding the Fourth Proportional to 990,123.40, 1,485,185.10 and 635,829.40

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Solution

The fourth proportional to 990,123.40, 1,485,185.10 and 635,829.40 is: 953,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,123.40 : 1,485,185.10 = 635,829.40 : x
  2. Step 2: Convert to fraction form
    990,123.40/1,485,185.10 = 635,829.40/x
  3. Step 3: Cross multiply
    990,123.40x = 1,485,185.10 × 635,829.40
  4. Step 4: Simplify right side
    990,123.40x = 944,324,351,021.94
  5. Step 5: Solve for x
    x = 944,324,351,021.94/990,123.40
  6. Step 6: Final answer
    x = 953,744.10

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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.