Home / 742,564.97-1,113,973.20-256,115.02

Finding the Fourth Proportional to 742,564.97, 1,113,973.20 and 256,115.02

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Solution

The fourth proportional to 742,564.97, 1,113,973.20 and 256,115.02 is: 384,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,564.97 : 1,113,973.20 = 256,115.02 : x
  2. Step 2: Convert to fraction form
    742,564.97/1,113,973.20 = 256,115.02/x
  3. Step 3: Cross multiply
    742,564.97x = 1,113,973.20 × 256,115.02
  4. Step 4: Simplify right side
    742,564.97x = 285,305,270,650.12
  5. Step 5: Solve for x
    x = 285,305,270,650.12/742,564.97
  6. Step 6: Final answer
    x = 384,215.91

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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.