Home / 993,049.30-1,490,189.55-520,074.10

Finding the Fourth Proportional to 993,049.30, 1,490,189.55 and 520,074.10

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Solution

The fourth proportional to 993,049.30, 1,490,189.55 and 520,074.10 is: 780,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,049.30 : 1,490,189.55 = 520,074.10 : x
  2. Step 2: Convert to fraction form
    993,049.30/1,490,189.55 = 520,074.10/x
  3. Step 3: Cross multiply
    993,049.30x = 1,490,189.55 × 520,074.10
  4. Step 4: Simplify right side
    993,049.30x = 775,008,989,045.66
  5. Step 5: Solve for x
    x = 775,008,989,045.66/993,049.30
  6. Step 6: Final answer
    x = 780,433.55

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Double scale
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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.