Home / 772,600.80-1,156,276.80-678,122.40

Finding the Fourth Proportional to 772,600.80, 1,156,276.80 and 678,122.40

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Solution

The fourth proportional to 772,600.80, 1,156,276.80 and 678,122.40 is: 1,014,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,600.80 : 1,156,276.80 = 678,122.40 : x
  2. Step 2: Convert to fraction form
    772,600.80/1,156,276.80 = 678,122.40/x
  3. Step 3: Cross multiply
    772,600.80x = 1,156,276.80 × 678,122.40
  4. Step 4: Simplify right side
    772,600.80x = 784,097,198,680.32
  5. Step 5: Solve for x
    x = 784,097,198,680.32/772,600.80
  6. Step 6: Final answer
    x = 1,014,880.13

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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.