Home / 654,955.93-903,789.16-368,420.64

Finding the Fourth Proportional to 654,955.93, 903,789.16 and 368,420.64

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Solution

The fourth proportional to 654,955.93, 903,789.16 and 368,420.64 is: 508,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,955.93 : 903,789.16 = 368,420.64 : x
  2. Step 2: Convert to fraction form
    654,955.93/903,789.16 = 368,420.64/x
  3. Step 3: Cross multiply
    654,955.93x = 903,789.16 × 368,420.64
  4. Step 4: Simplify right side
    654,955.93x = 332,974,580,752.26
  5. Step 5: Solve for x
    x = 332,974,580,752.26/654,955.93
  6. Step 6: Final answer
    x = 508,392.34

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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.