Home / 1,246,901.82-1,871,053.42-678,322.71

Finding the Fourth Proportional to 1,246,901.82, 1,871,053.42 and 678,322.71

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Solution

The fourth proportional to 1,246,901.82, 1,871,053.42 and 678,322.71 is: 1,017,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,901.82 : 1,871,053.42 = 678,322.71 : x
  2. Step 2: Convert to fraction form
    1,246,901.82/1,871,053.42 = 678,322.71/x
  3. Step 3: Cross multiply
    1,246,901.82x = 1,871,053.42 × 678,322.71
  4. Step 4: Simplify right side
    1,246,901.82x = 1,269,178,026,409.17
  5. Step 5: Solve for x
    x = 1,269,178,026,409.17/1,246,901.82
  6. Step 6: Final answer
    x = 1,017,865.24

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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.