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Finding the Fourth Proportional to 518,500.68, 775,811.88 and 369,084.84

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Solution

The fourth proportional to 518,500.68, 775,811.88 and 369,084.84 is: 552,246.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,500.68 : 775,811.88 = 369,084.84 : x
  2. Step 2: Convert to fraction form
    518,500.68/775,811.88 = 369,084.84/x
  3. Step 3: Cross multiply
    518,500.68x = 775,811.88 × 369,084.84
  4. Step 4: Simplify right side
    518,500.68x = 286,340,403,599.90
  5. Step 5: Solve for x
    x = 286,340,403,599.90/518,500.68
  6. Step 6: Final answer
    x = 552,246.92

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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.