Home / 770,372.64-1,155,555.60-209,405.52

Finding the Fourth Proportional to 770,372.64, 1,155,555.60 and 209,405.52

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Solution

The fourth proportional to 770,372.64, 1,155,555.60 and 209,405.52 is: 314,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,372.64 : 1,155,555.60 = 209,405.52 : x
  2. Step 2: Convert to fraction form
    770,372.64/1,155,555.60 = 209,405.52/x
  3. Step 3: Cross multiply
    770,372.64x = 1,155,555.60 × 209,405.52
  4. Step 4: Simplify right side
    770,372.64x = 241,979,721,306.91
  5. Step 5: Solve for x
    x = 241,979,721,306.91/770,372.64
  6. Step 6: Final answer
    x = 314,107.37

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1.5x scale

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.