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Finding the Fourth Proportional to 662,277.87, 993,709.32 and 513,807.91

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Solution

The fourth proportional to 662,277.87, 993,709.32 and 513,807.91 is: 770,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,277.87 : 993,709.32 = 513,807.91 : x
  2. Step 2: Convert to fraction form
    662,277.87/993,709.32 = 513,807.91/x
  3. Step 3: Cross multiply
    662,277.87x = 993,709.32 × 513,807.91
  4. Step 4: Simplify right side
    662,277.87x = 510,575,704,445.67
  5. Step 5: Solve for x
    x = 510,575,704,445.67/662,277.87
  6. Step 6: Final answer
    x = 770,938.80

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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.