Home / 770,811.20-1,156,216.80-713,074.40

Finding the Fourth Proportional to 770,811.20, 1,156,216.80 and 713,074.40

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Solution

The fourth proportional to 770,811.20, 1,156,216.80 and 713,074.40 is: 1,069,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,811.20 : 1,156,216.80 = 713,074.40 : x
  2. Step 2: Convert to fraction form
    770,811.20/1,156,216.80 = 713,074.40/x
  3. Step 3: Cross multiply
    770,811.20x = 1,156,216.80 × 713,074.40
  4. Step 4: Simplify right side
    770,811.20x = 824,468,600,929.92
  5. Step 5: Solve for x
    x = 824,468,600,929.92/770,811.20
  6. Step 6: Final answer
    x = 1,069,611.60

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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.