Home / 993,416.81-1,490,563.97-770,711.86

Finding the Fourth Proportional to 993,416.81, 1,490,563.97 and 770,711.86

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Solution

The fourth proportional to 993,416.81, 1,490,563.97 and 770,711.86 is: 1,156,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,416.81 : 1,490,563.97 = 770,711.86 : x
  2. Step 2: Convert to fraction form
    993,416.81/1,490,563.97 = 770,711.86/x
  3. Step 3: Cross multiply
    993,416.81x = 1,490,563.97 × 770,711.86
  4. Step 4: Simplify right side
    993,416.81x = 1,148,795,335,002.75
  5. Step 5: Solve for x
    x = 1,148,795,335,002.75/993,416.81
  6. Step 6: Final answer
    x = 1,156,408.20

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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.