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Finding the Fourth Proportional to 553,380.80, 830,071.20 and 530,052.80

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Solution

The fourth proportional to 553,380.80, 830,071.20 and 530,052.80 is: 795,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,380.80 : 830,071.20 = 530,052.80 : x
  2. Step 2: Convert to fraction form
    553,380.80/830,071.20 = 530,052.80/x
  3. Step 3: Cross multiply
    553,380.80x = 830,071.20 × 530,052.80
  4. Step 4: Simplify right side
    553,380.80x = 439,981,563,759.36
  5. Step 5: Solve for x
    x = 439,981,563,759.36/553,380.80
  6. Step 6: Final answer
    x = 795,079.20

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Similar ratio
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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.