Home / 993,041.80-1,490,178.30-520,066.60

Finding the Fourth Proportional to 993,041.80, 1,490,178.30 and 520,066.60

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Solution

The fourth proportional to 993,041.80, 1,490,178.30 and 520,066.60 is: 780,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,041.80 : 1,490,178.30 = 520,066.60 : x
  2. Step 2: Convert to fraction form
    993,041.80/1,490,178.30 = 520,066.60/x
  3. Step 3: Cross multiply
    993,041.80x = 1,490,178.30 × 520,066.60
  4. Step 4: Simplify right side
    993,041.80x = 774,991,961,874.78
  5. Step 5: Solve for x
    x = 774,991,961,874.78/993,041.80
  6. Step 6: Final answer
    x = 780,422.30

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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.