Home / 1,240,815.61-1,712,288.22-689,529.46

Finding the Fourth Proportional to 1,240,815.61, 1,712,288.22 and 689,529.46

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Solution

The fourth proportional to 1,240,815.61, 1,712,288.22 and 689,529.46 is: 951,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,815.61 : 1,712,288.22 = 689,529.46 : x
  2. Step 2: Convert to fraction form
    1,240,815.61/1,712,288.22 = 689,529.46/x
  3. Step 3: Cross multiply
    1,240,815.61x = 1,712,288.22 × 689,529.46
  4. Step 4: Simplify right side
    1,240,815.61x = 1,180,673,171,700.96
  5. Step 5: Solve for x
    x = 1,180,673,171,700.96/1,240,815.61
  6. Step 6: Final answer
    x = 951,529.91

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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.