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Finding the Fourth Proportional to 626,551.11, 864,641.52 and 340,071.32

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Solution

The fourth proportional to 626,551.11, 864,641.52 and 340,071.32 is: 469,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,551.11 : 864,641.52 = 340,071.32 : x
  2. Step 2: Convert to fraction form
    626,551.11/864,641.52 = 340,071.32/x
  3. Step 3: Cross multiply
    626,551.11x = 864,641.52 × 340,071.32
  4. Step 4: Simplify right side
    626,551.11x = 294,039,783,033.21
  5. Step 5: Solve for x
    x = 294,039,783,033.21/626,551.11
  6. Step 6: Final answer
    x = 469,298.96

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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.