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Finding the Fourth Proportional to 578,366.76, 798,163.02 and 323,711.40

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Solution

The fourth proportional to 578,366.76, 798,163.02 and 323,711.40 is: 446,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,366.76 : 798,163.02 = 323,711.40 : x
  2. Step 2: Convert to fraction form
    578,366.76/798,163.02 = 323,711.40/x
  3. Step 3: Cross multiply
    578,366.76x = 798,163.02 × 323,711.40
  4. Step 4: Simplify right side
    578,366.76x = 258,374,468,632.43
  5. Step 5: Solve for x
    x = 258,374,468,632.43/578,366.76
  6. Step 6: Final answer
    x = 446,731.19

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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.