Home / 1,216,123.32-1,822,405.14-684,681.24

Finding the Fourth Proportional to 1,216,123.32, 1,822,405.14 and 684,681.24

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Solution

The fourth proportional to 1,216,123.32, 1,822,405.14 and 684,681.24 is: 1,026,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,123.32 : 1,822,405.14 = 684,681.24 : x
  2. Step 2: Convert to fraction form
    1,216,123.32/1,822,405.14 = 684,681.24/x
  3. Step 3: Cross multiply
    1,216,123.32x = 1,822,405.14 × 684,681.24
  4. Step 4: Simplify right side
    1,216,123.32x = 1,247,766,611,037.57
  5. Step 5: Solve for x
    x = 1,247,766,611,037.57/1,216,123.32
  6. Step 6: Final answer
    x = 1,026,019.80

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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.