Home / 751,560.40-1,128,215.40-452,378.80

Finding the Fourth Proportional to 751,560.40, 1,128,215.40 and 452,378.80

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Solution

The fourth proportional to 751,560.40, 1,128,215.40 and 452,378.80 is: 679,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,560.40 : 1,128,215.40 = 452,378.80 : x
  2. Step 2: Convert to fraction form
    751,560.40/1,128,215.40 = 452,378.80/x
  3. Step 3: Cross multiply
    751,560.40x = 1,128,215.40 × 452,378.80
  4. Step 4: Simplify right side
    751,560.40x = 510,380,728,793.52
  5. Step 5: Solve for x
    x = 510,380,728,793.52/751,560.40
  6. Step 6: Final answer
    x = 679,094.76

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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.