Home / 1,011,173.31-1,393,500.78-724,195.17

Finding the Fourth Proportional to 1,011,173.31, 1,393,500.78 and 724,195.17

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Solution

The fourth proportional to 1,011,173.31, 1,393,500.78 and 724,195.17 is: 998,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,173.31 : 1,393,500.78 = 724,195.17 : x
  2. Step 2: Convert to fraction form
    1,011,173.31/1,393,500.78 = 724,195.17/x
  3. Step 3: Cross multiply
    1,011,173.31x = 1,393,500.78 × 724,195.17
  4. Step 4: Simplify right side
    1,011,173.31x = 1,009,166,534,267.23
  5. Step 5: Solve for x
    x = 1,009,166,534,267.23/1,011,173.31
  6. Step 6: Final answer
    x = 998,015.40

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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.