Home / 1,298,661.75-1,947,899.75-400,009.68

Finding the Fourth Proportional to 1,298,661.75, 1,947,899.75 and 400,009.68

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Solution

The fourth proportional to 1,298,661.75, 1,947,899.75 and 400,009.68 is: 599,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,661.75 : 1,947,899.75 = 400,009.68 : x
  2. Step 2: Convert to fraction form
    1,298,661.75/1,947,899.75 = 400,009.68/x
  3. Step 3: Cross multiply
    1,298,661.75x = 1,947,899.75 × 400,009.68
  4. Step 4: Simplify right side
    1,298,661.75x = 779,178,753,669.53
  5. Step 5: Solve for x
    x = 779,178,753,669.53/1,298,661.75
  6. Step 6: Final answer
    x = 599,985.91

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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.