Home / 991,000.74-1,366,964.19-825,005.01

Finding the Fourth Proportional to 991,000.74, 1,366,964.19 and 825,005.01

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Solution

The fourth proportional to 991,000.74, 1,366,964.19 and 825,005.01 is: 1,137,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,000.74 : 1,366,964.19 = 825,005.01 : x
  2. Step 2: Convert to fraction form
    991,000.74/1,366,964.19 = 825,005.01/x
  3. Step 3: Cross multiply
    991,000.74x = 1,366,964.19 × 825,005.01
  4. Step 4: Simplify right side
    991,000.74x = 1,127,752,305,240.59
  5. Step 5: Solve for x
    x = 1,127,752,305,240.59/991,000.74
  6. Step 6: Final answer
    x = 1,137,993.40

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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.