Home / 990,066.20-1,485,099.30-492,402.20

Finding the Fourth Proportional to 990,066.20, 1,485,099.30 and 492,402.20

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Solution

The fourth proportional to 990,066.20, 1,485,099.30 and 492,402.20 is: 738,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,066.20 : 1,485,099.30 = 492,402.20 : x
  2. Step 2: Convert to fraction form
    990,066.20/1,485,099.30 = 492,402.20/x
  3. Step 3: Cross multiply
    990,066.20x = 1,485,099.30 × 492,402.20
  4. Step 4: Simplify right side
    990,066.20x = 731,266,162,538.46
  5. Step 5: Solve for x
    x = 731,266,162,538.46/990,066.20
  6. Step 6: Final answer
    x = 738,603.30

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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.