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Finding the Fourth Proportional to 482,970.40, 724,455.60 and 303,344.80

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Solution

The fourth proportional to 482,970.40, 724,455.60 and 303,344.80 is: 455,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,970.40 : 724,455.60 = 303,344.80 : x
  2. Step 2: Convert to fraction form
    482,970.40/724,455.60 = 303,344.80/x
  3. Step 3: Cross multiply
    482,970.40x = 724,455.60 × 303,344.80
  4. Step 4: Simplify right side
    482,970.40x = 219,759,839,090.88
  5. Step 5: Solve for x
    x = 219,759,839,090.88/482,970.40
  6. Step 6: Final answer
    x = 455,017.20

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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.