Home / 1,012,153.72-1,395,867.48-839,798.80

Finding the Fourth Proportional to 1,012,153.72, 1,395,867.48 and 839,798.80

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Solution

The fourth proportional to 1,012,153.72, 1,395,867.48 and 839,798.80 is: 1,158,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,153.72 : 1,395,867.48 = 839,798.80 : x
  2. Step 2: Convert to fraction form
    1,012,153.72/1,395,867.48 = 839,798.80/x
  3. Step 3: Cross multiply
    1,012,153.72x = 1,395,867.48 × 839,798.80
  4. Step 4: Simplify right side
    1,012,153.72x = 1,172,247,834,663.02
  5. Step 5: Solve for x
    x = 1,172,247,834,663.02/1,012,153.72
  6. Step 6: Final answer
    x = 1,158,171.74

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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.