Home / 1,240,840.40-1,861,260.60-530,940.20

Finding the Fourth Proportional to 1,240,840.40, 1,861,260.60 and 530,940.20

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Solution

The fourth proportional to 1,240,840.40, 1,861,260.60 and 530,940.20 is: 796,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,840.40 : 1,861,260.60 = 530,940.20 : x
  2. Step 2: Convert to fraction form
    1,240,840.40/1,861,260.60 = 530,940.20/x
  3. Step 3: Cross multiply
    1,240,840.40x = 1,861,260.60 × 530,940.20
  4. Step 4: Simplify right side
    1,240,840.40x = 988,218,075,216.12
  5. Step 5: Solve for x
    x = 988,218,075,216.12/1,240,840.40
  6. Step 6: Final answer
    x = 796,410.30

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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.