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Finding the Fourth Proportional to 668,117.60, 999,843.60 and 458,165.60

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Solution

The fourth proportional to 668,117.60, 999,843.60 and 458,165.60 is: 685,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,117.60 : 999,843.60 = 458,165.60 : x
  2. Step 2: Convert to fraction form
    668,117.60/999,843.60 = 458,165.60/x
  3. Step 3: Cross multiply
    668,117.60x = 999,843.60 × 458,165.60
  4. Step 4: Simplify right side
    668,117.60x = 458,093,942,900.16
  5. Step 5: Solve for x
    x = 458,093,942,900.16/668,117.60
  6. Step 6: Final answer
    x = 685,648.67

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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.