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Finding the Fourth Proportional to 471,486.63, 650,665.65 and 290,303.10

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Solution

The fourth proportional to 471,486.63, 650,665.65 and 290,303.10 is: 400,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,486.63 : 650,665.65 = 290,303.10 : x
  2. Step 2: Convert to fraction form
    471,486.63/650,665.65 = 290,303.10/x
  3. Step 3: Cross multiply
    471,486.63x = 650,665.65 × 290,303.10
  4. Step 4: Simplify right side
    471,486.63x = 188,890,255,258.52
  5. Step 5: Solve for x
    x = 188,890,255,258.52/471,486.63
  6. Step 6: Final answer
    x = 400,626.96

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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.