Home / 427,792.36-642,319.35-238,622.33

Finding the Fourth Proportional to 427,792.36, 642,319.35 and 238,622.33

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Solution

The fourth proportional to 427,792.36, 642,319.35 and 238,622.33 is: 358,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,792.36 : 642,319.35 = 238,622.33 : x
  2. Step 2: Convert to fraction form
    427,792.36/642,319.35 = 238,622.33/x
  3. Step 3: Cross multiply
    427,792.36x = 642,319.35 × 238,622.33
  4. Step 4: Simplify right side
    427,792.36x = 153,271,736,689.49
  5. Step 5: Solve for x
    x = 153,271,736,689.49/427,792.36
  6. Step 6: Final answer
    x = 358,285.36

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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.