Home / 747,221.64-1,121,594.88-546,947.12

Finding the Fourth Proportional to 747,221.64, 1,121,594.88 and 546,947.12

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Solution

The fourth proportional to 747,221.64, 1,121,594.88 and 546,947.12 is: 820,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,221.64 : 1,121,594.88 = 546,947.12 : x
  2. Step 2: Convert to fraction form
    747,221.64/1,121,594.88 = 546,947.12/x
  3. Step 3: Cross multiply
    747,221.64x = 1,121,594.88 × 546,947.12
  4. Step 4: Simplify right side
    747,221.64x = 613,453,089,422.75
  5. Step 5: Solve for x
    x = 613,453,089,422.75/747,221.64
  6. Step 6: Final answer
    x = 820,978.75

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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.