Home / 654,884.13-903,738.78-368,404.47

Finding the Fourth Proportional to 654,884.13, 903,738.78 and 368,404.47

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Solution

The fourth proportional to 654,884.13, 903,738.78 and 368,404.47 is: 508,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,884.13 : 903,738.78 = 368,404.47 : x
  2. Step 2: Convert to fraction form
    654,884.13/903,738.78 = 368,404.47/x
  3. Step 3: Cross multiply
    654,884.13x = 903,738.78 × 368,404.47
  4. Step 4: Simplify right side
    654,884.13x = 332,941,406,264.35
  5. Step 5: Solve for x
    x = 332,941,406,264.35/654,884.13
  6. Step 6: Final answer
    x = 508,397.43

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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.