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Finding the Fourth Proportional to 654,980.74, 903,800.28 and 368,494.66

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Solution

The fourth proportional to 654,980.74, 903,800.28 and 368,494.66 is: 508,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,980.74 : 903,800.28 = 368,494.66 : x
  2. Step 2: Convert to fraction form
    654,980.74/903,800.28 = 368,494.66/x
  3. Step 3: Cross multiply
    654,980.74x = 903,800.28 × 368,494.66
  4. Step 4: Simplify right side
    654,980.74x = 333,045,576,886.51
  5. Step 5: Solve for x
    x = 333,045,576,886.51/654,980.74
  6. Step 6: Final answer
    x = 508,481.48

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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.