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Finding the Fourth Proportional to 324,693.64, 484,662.74 and 286,344.87

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Solution

The fourth proportional to 324,693.64, 484,662.74 and 286,344.87 is: 427,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,693.64 : 484,662.74 = 286,344.87 : x
  2. Step 2: Convert to fraction form
    324,693.64/484,662.74 = 286,344.87/x
  3. Step 3: Cross multiply
    324,693.64x = 484,662.74 × 286,344.87
  4. Step 4: Simplify right side
    324,693.64x = 138,780,689,279.14
  5. Step 5: Solve for x
    x = 138,780,689,279.14/324,693.64
  6. Step 6: Final answer
    x = 427,420.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.