Home / 993,342.80-1,490,014.20-520,173.20

Finding the Fourth Proportional to 993,342.80, 1,490,014.20 and 520,173.20

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Solution

The fourth proportional to 993,342.80, 1,490,014.20 and 520,173.20 is: 780,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,342.80 : 1,490,014.20 = 520,173.20 : x
  2. Step 2: Convert to fraction form
    993,342.80/1,490,014.20 = 520,173.20/x
  3. Step 3: Cross multiply
    993,342.80x = 1,490,014.20 × 520,173.20
  4. Step 4: Simplify right side
    993,342.80x = 775,065,454,459.44
  5. Step 5: Solve for x
    x = 775,065,454,459.44/993,342.80
  6. Step 6: Final answer
    x = 780,259.80

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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.