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Finding the Fourth Proportional to 400,904.06, 553,037.86 and 247,893.34

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Solution

The fourth proportional to 400,904.06, 553,037.86 and 247,893.34 is: 341,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,904.06 : 553,037.86 = 247,893.34 : x
  2. Step 2: Convert to fraction form
    400,904.06/553,037.86 = 247,893.34/x
  3. Step 3: Cross multiply
    400,904.06x = 553,037.86 × 247,893.34
  4. Step 4: Simplify right side
    400,904.06x = 137,094,402,261.85
  5. Step 5: Solve for x
    x = 137,094,402,261.85/400,904.06
  6. Step 6: Final answer
    x = 341,963.12

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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.