Home / 817,747.80-1,226,621.70-781,006.20

Finding the Fourth Proportional to 817,747.80, 1,226,621.70 and 781,006.20

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Solution

The fourth proportional to 817,747.80, 1,226,621.70 and 781,006.20 is: 1,171,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,747.80 : 1,226,621.70 = 781,006.20 : x
  2. Step 2: Convert to fraction form
    817,747.80/1,226,621.70 = 781,006.20/x
  3. Step 3: Cross multiply
    817,747.80x = 1,226,621.70 × 781,006.20
  4. Step 4: Simplify right side
    817,747.80x = 957,999,152,754.54
  5. Step 5: Solve for x
    x = 957,999,152,754.54/817,747.80
  6. Step 6: Final answer
    x = 1,171,509.30

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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.