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Finding the Fourth Proportional to 553,076.66, 829,873.34 and 286,691.86

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Solution

The fourth proportional to 553,076.66, 829,873.34 and 286,691.86 is: 430,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,076.66 : 829,873.34 = 286,691.86 : x
  2. Step 2: Convert to fraction form
    553,076.66/829,873.34 = 286,691.86/x
  3. Step 3: Cross multiply
    553,076.66x = 829,873.34 × 286,691.86
  4. Step 4: Simplify right side
    553,076.66x = 237,917,931,409.01
  5. Step 5: Solve for x
    x = 237,917,931,409.01/553,076.66
  6. Step 6: Final answer
    x = 430,171.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.