Home / 1,318,810.80-1,978,216.20-610,222.80

Finding the Fourth Proportional to 1,318,810.80, 1,978,216.20 and 610,222.80

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Solution

The fourth proportional to 1,318,810.80, 1,978,216.20 and 610,222.80 is: 915,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,810.80 : 1,978,216.20 = 610,222.80 : x
  2. Step 2: Convert to fraction form
    1,318,810.80/1,978,216.20 = 610,222.80/x
  3. Step 3: Cross multiply
    1,318,810.80x = 1,978,216.20 × 610,222.80
  4. Step 4: Simplify right side
    1,318,810.80x = 1,207,152,628,569.36
  5. Step 5: Solve for x
    x = 1,207,152,628,569.36/1,318,810.80
  6. Step 6: Final answer
    x = 915,334.20

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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.