Home / 742,168.78-1,024,194.90-402,637.03

Finding the Fourth Proportional to 742,168.78, 1,024,194.90 and 402,637.03

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Solution

The fourth proportional to 742,168.78, 1,024,194.90 and 402,637.03 is: 555,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,168.78 : 1,024,194.90 = 402,637.03 : x
  2. Step 2: Convert to fraction form
    742,168.78/1,024,194.90 = 402,637.03/x
  3. Step 3: Cross multiply
    742,168.78x = 1,024,194.90 × 402,637.03
  4. Step 4: Simplify right side
    742,168.78x = 412,378,789,361.72
  5. Step 5: Solve for x
    x = 412,378,789,361.72/742,168.78
  6. Step 6: Final answer
    x = 555,640.17

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1.5x scale

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.