Home / 1,280,752.20-1,918,601.10-650,118.60

Finding the Fourth Proportional to 1,280,752.20, 1,918,601.10 and 650,118.60

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Solution

The fourth proportional to 1,280,752.20, 1,918,601.10 and 650,118.60 is: 973,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,752.20 : 1,918,601.10 = 650,118.60 : x
  2. Step 2: Convert to fraction form
    1,280,752.20/1,918,601.10 = 650,118.60/x
  3. Step 3: Cross multiply
    1,280,752.20x = 1,918,601.10 × 650,118.60
  4. Step 4: Simplify right side
    1,280,752.20x = 1,247,318,261,090.46
  5. Step 5: Solve for x
    x = 1,247,318,261,090.46/1,280,752.20
  6. Step 6: Final answer
    x = 973,895.08

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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.