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Finding the Fourth Proportional to 400,592.51, 552,817.62 and 219,303.87

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Solution

The fourth proportional to 400,592.51, 552,817.62 and 219,303.87 is: 302,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,592.51 : 552,817.62 = 219,303.87 : x
  2. Step 2: Convert to fraction form
    400,592.51/552,817.62 = 219,303.87/x
  3. Step 3: Cross multiply
    400,592.51x = 552,817.62 × 219,303.87
  4. Step 4: Simplify right side
    400,592.51x = 121,235,043,470.19
  5. Step 5: Solve for x
    x = 121,235,043,470.19/400,592.51
  6. Step 6: Final answer
    x = 302,639.32

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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.