Home / 769,619.20-1,154,428.80-627,901.60

Finding the Fourth Proportional to 769,619.20, 1,154,428.80 and 627,901.60

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Solution

The fourth proportional to 769,619.20, 1,154,428.80 and 627,901.60 is: 941,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,619.20 : 1,154,428.80 = 627,901.60 : x
  2. Step 2: Convert to fraction form
    769,619.20/1,154,428.80 = 627,901.60/x
  3. Step 3: Cross multiply
    769,619.20x = 1,154,428.80 × 627,901.60
  4. Step 4: Simplify right side
    769,619.20x = 724,867,690,606.08
  5. Step 5: Solve for x
    x = 724,867,690,606.08/769,619.20
  6. Step 6: Final answer
    x = 941,852.40

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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.