Home / 718,715.20-1,076,906.40-451,998.40

Finding the Fourth Proportional to 718,715.20, 1,076,906.40 and 451,998.40

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Solution

The fourth proportional to 718,715.20, 1,076,906.40 and 451,998.40 is: 677,264.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,715.20 : 1,076,906.40 = 451,998.40 : x
  2. Step 2: Convert to fraction form
    718,715.20/1,076,906.40 = 451,998.40/x
  3. Step 3: Cross multiply
    718,715.20x = 1,076,906.40 × 451,998.40
  4. Step 4: Simplify right side
    718,715.20x = 486,759,969,749.76
  5. Step 5: Solve for x
    x = 486,759,969,749.76/718,715.20
  6. Step 6: Final answer
    x = 677,264.05

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1.5x scale

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.