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Finding the Fourth Proportional to 979,272.80, 1,465,798.80 and 699,336.80

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Solution

The fourth proportional to 979,272.80, 1,465,798.80 and 699,336.80 is: 1,046,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,272.80 : 1,465,798.80 = 699,336.80 : x
  2. Step 2: Convert to fraction form
    979,272.80/1,465,798.80 = 699,336.80/x
  3. Step 3: Cross multiply
    979,272.80x = 1,465,798.80 × 699,336.80
  4. Step 4: Simplify right side
    979,272.80x = 1,025,087,042,235.84
  5. Step 5: Solve for x
    x = 1,025,087,042,235.84/979,272.80
  6. Step 6: Final answer
    x = 1,046,783.94

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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.