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Finding the Fourth Proportional to 559,639.20, 839,458.80 and 537,866.40

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Solution

The fourth proportional to 559,639.20, 839,458.80 and 537,866.40 is: 806,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,639.20 : 839,458.80 = 537,866.40 : x
  2. Step 2: Convert to fraction form
    559,639.20/839,458.80 = 537,866.40/x
  3. Step 3: Cross multiply
    559,639.20x = 839,458.80 × 537,866.40
  4. Step 4: Simplify right side
    559,639.20x = 451,516,682,704.32
  5. Step 5: Solve for x
    x = 451,516,682,704.32/559,639.20
  6. Step 6: Final answer
    x = 806,799.60

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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.