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Finding the Fourth Proportional to 662,422.40, 994,292.80 and 307,516.80

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Solution

The fourth proportional to 662,422.40, 994,292.80 and 307,516.80 is: 461,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,422.40 : 994,292.80 = 307,516.80 : x
  2. Step 2: Convert to fraction form
    662,422.40/994,292.80 = 307,516.80/x
  3. Step 3: Cross multiply
    662,422.40x = 994,292.80 × 307,516.80
  4. Step 4: Simplify right side
    662,422.40x = 305,761,740,119.04
  5. Step 5: Solve for x
    x = 305,761,740,119.04/662,422.40
  6. Step 6: Final answer
    x = 461,581.22

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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.