Home / 993,341.80-1,490,628.30-520,366.60

Finding the Fourth Proportional to 993,341.80, 1,490,628.30 and 520,366.60

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Solution

The fourth proportional to 993,341.80, 1,490,628.30 and 520,366.60 is: 780,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,341.80 : 1,490,628.30 = 520,366.60 : x
  2. Step 2: Convert to fraction form
    993,341.80/1,490,628.30 = 520,366.60/x
  3. Step 3: Cross multiply
    993,341.80x = 1,490,628.30 × 520,366.60
  4. Step 4: Simplify right side
    993,341.80x = 775,673,180,334.78
  5. Step 5: Solve for x
    x = 775,673,180,334.78/993,341.80
  6. Step 6: Final answer
    x = 780,872.38

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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.