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Finding the Fourth Proportional to 668,884.60, 1,001,771.70 and 457,377.40

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Solution

The fourth proportional to 668,884.60, 1,001,771.70 and 457,377.40 is: 685,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,884.60 : 1,001,771.70 = 457,377.40 : x
  2. Step 2: Convert to fraction form
    668,884.60/1,001,771.70 = 457,377.40/x
  3. Step 3: Cross multiply
    668,884.60x = 1,001,771.70 × 457,377.40
  4. Step 4: Simplify right side
    668,884.60x = 458,187,735,539.58
  5. Step 5: Solve for x
    x = 458,187,735,539.58/668,884.60
  6. Step 6: Final answer
    x = 685,002.67

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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.