Home / 851,378.70-1,175,383.17-565,289.94

Finding the Fourth Proportional to 851,378.70, 1,175,383.17 and 565,289.94

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Solution

The fourth proportional to 851,378.70, 1,175,383.17 and 565,289.94 is: 780,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,378.70 : 1,175,383.17 = 565,289.94 : x
  2. Step 2: Convert to fraction form
    851,378.70/1,175,383.17 = 565,289.94/x
  3. Step 3: Cross multiply
    851,378.70x = 1,175,383.17 × 565,289.94
  4. Step 4: Simplify right side
    851,378.70x = 664,432,281,646.31
  5. Step 5: Solve for x
    x = 664,432,281,646.31/851,378.70
  6. Step 6: Final answer
    x = 780,419.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.