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Finding the Fourth Proportional to 622,286.40, 933,429.60 and 472,987.20

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Solution

The fourth proportional to 622,286.40, 933,429.60 and 472,987.20 is: 709,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,286.40 : 933,429.60 = 472,987.20 : x
  2. Step 2: Convert to fraction form
    622,286.40/933,429.60 = 472,987.20/x
  3. Step 3: Cross multiply
    622,286.40x = 933,429.60 × 472,987.20
  4. Step 4: Simplify right side
    622,286.40x = 441,500,252,901.12
  5. Step 5: Solve for x
    x = 441,500,252,901.12/622,286.40
  6. Step 6: Final answer
    x = 709,480.80

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Similar ratio
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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.