Home / 1,260,112.60-1,890,535.02-407,166.40

Finding the Fourth Proportional to 1,260,112.60, 1,890,535.02 and 407,166.40

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Solution

The fourth proportional to 1,260,112.60, 1,890,535.02 and 407,166.40 is: 610,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,112.60 : 1,890,535.02 = 407,166.40 : x
  2. Step 2: Convert to fraction form
    1,260,112.60/1,890,535.02 = 407,166.40/x
  3. Step 3: Cross multiply
    1,260,112.60x = 1,890,535.02 × 407,166.40
  4. Step 4: Simplify right side
    1,260,112.60x = 769,762,338,167.33
  5. Step 5: Solve for x
    x = 769,762,338,167.33/1,260,112.60
  6. Step 6: Final answer
    x = 610,867.90

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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.