Home / 658,963.07-909,358.21-368,581.42

Finding the Fourth Proportional to 658,963.07, 909,358.21 and 368,581.42

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Solution

The fourth proportional to 658,963.07, 909,358.21 and 368,581.42 is: 508,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,963.07 : 909,358.21 = 368,581.42 : x
  2. Step 2: Convert to fraction form
    658,963.07/909,358.21 = 368,581.42/x
  3. Step 3: Cross multiply
    658,963.07x = 909,358.21 × 368,581.42
  4. Step 4: Simplify right side
    658,963.07x = 335,172,533,940.76
  5. Step 5: Solve for x
    x = 335,172,533,940.76/658,963.07
  6. Step 6: Final answer
    x = 508,636.29

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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.