Home / 722,430.90-996,961.86-435,895.74

Finding the Fourth Proportional to 722,430.90, 996,961.86 and 435,895.74

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Solution

The fourth proportional to 722,430.90, 996,961.86 and 435,895.74 is: 601,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,430.90 : 996,961.86 = 435,895.74 : x
  2. Step 2: Convert to fraction form
    722,430.90/996,961.86 = 435,895.74/x
  3. Step 3: Cross multiply
    722,430.90x = 996,961.86 × 435,895.74
  4. Step 4: Simplify right side
    722,430.90x = 434,571,427,716.48
  5. Step 5: Solve for x
    x = 434,571,427,716.48/722,430.90
  6. Step 6: Final answer
    x = 601,540.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.