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Finding the Fourth Proportional to 637,654.56, 879,954.65 and 362,009.91

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Solution

The fourth proportional to 637,654.56, 879,954.65 and 362,009.91 is: 499,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,654.56 : 879,954.65 = 362,009.91 : x
  2. Step 2: Convert to fraction form
    637,654.56/879,954.65 = 362,009.91/x
  3. Step 3: Cross multiply
    637,654.56x = 879,954.65 × 362,009.91
  4. Step 4: Simplify right side
    637,654.56x = 318,552,301,840.53
  5. Step 5: Solve for x
    x = 318,552,301,840.53/637,654.56
  6. Step 6: Final answer
    x = 499,568.77

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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.