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Finding the Fourth Proportional to 650,300.40, 975,304.80 and 427,226.40

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Solution

The fourth proportional to 650,300.40, 975,304.80 and 427,226.40 is: 640,743.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,300.40 : 975,304.80 = 427,226.40 : x
  2. Step 2: Convert to fraction form
    650,300.40/975,304.80 = 427,226.40/x
  3. Step 3: Cross multiply
    650,300.40x = 975,304.80 × 427,226.40
  4. Step 4: Simplify right side
    650,300.40x = 416,675,958,606.72
  5. Step 5: Solve for x
    x = 416,675,958,606.72/650,300.40
  6. Step 6: Final answer
    x = 640,743.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.