Home / 1,642,487.20-2,463,500.40-520,669.60

Finding the Fourth Proportional to 1,642,487.20, 2,463,500.40 and 520,669.60

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Solution

The fourth proportional to 1,642,487.20, 2,463,500.40 and 520,669.60 is: 780,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,487.20 : 2,463,500.40 = 520,669.60 : x
  2. Step 2: Convert to fraction form
    1,642,487.20/2,463,500.40 = 520,669.60/x
  3. Step 3: Cross multiply
    1,642,487.20x = 2,463,500.40 × 520,669.60
  4. Step 4: Simplify right side
    1,642,487.20x = 1,282,669,767,867.84
  5. Step 5: Solve for x
    x = 1,282,669,767,867.84/1,642,487.20
  6. Step 6: Final answer
    x = 780,931.36

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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.