Home / 777,737.32-1,073,353.70-455,427.56

Finding the Fourth Proportional to 777,737.32, 1,073,353.70 and 455,427.56

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Solution

The fourth proportional to 777,737.32, 1,073,353.70 and 455,427.56 is: 628,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,737.32 : 1,073,353.70 = 455,427.56 : x
  2. Step 2: Convert to fraction form
    777,737.32/1,073,353.70 = 455,427.56/x
  3. Step 3: Cross multiply
    777,737.32x = 1,073,353.70 × 455,427.56
  4. Step 4: Simplify right side
    777,737.32x = 488,834,856,607.97
  5. Step 5: Solve for x
    x = 488,834,856,607.97/777,737.32
  6. Step 6: Final answer
    x = 628,534.65

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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.