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Finding the Fourth Proportional to 553,676.70, 830,515.05 and 548,427.90

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Solution

The fourth proportional to 553,676.70, 830,515.05 and 548,427.90 is: 822,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,676.70 : 830,515.05 = 548,427.90 : x
  2. Step 2: Convert to fraction form
    553,676.70/830,515.05 = 548,427.90/x
  3. Step 3: Cross multiply
    553,676.70x = 830,515.05 × 548,427.90
  4. Step 4: Simplify right side
    553,676.70x = 455,477,624,789.90
  5. Step 5: Solve for x
    x = 455,477,624,789.90/553,676.70
  6. Step 6: Final answer
    x = 822,641.85

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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.