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Finding the Fourth Proportional to 553,630.70, 830,446.05 and 483,646.70

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Solution

The fourth proportional to 553,630.70, 830,446.05 and 483,646.70 is: 725,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,630.70 : 830,446.05 = 483,646.70 : x
  2. Step 2: Convert to fraction form
    553,630.70/830,446.05 = 483,646.70/x
  3. Step 3: Cross multiply
    553,630.70x = 830,446.05 × 483,646.70
  4. Step 4: Simplify right side
    553,630.70x = 401,642,491,610.54
  5. Step 5: Solve for x
    x = 401,642,491,610.54/553,630.70
  6. Step 6: Final answer
    x = 725,470.05

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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.