Home / 1,434,335.40-1,979,390.07-822,511.20

Finding the Fourth Proportional to 1,434,335.40, 1,979,390.07 and 822,511.20

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Solution

The fourth proportional to 1,434,335.40, 1,979,390.07 and 822,511.20 is: 1,135,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,335.40 : 1,979,390.07 = 822,511.20 : x
  2. Step 2: Convert to fraction form
    1,434,335.40/1,979,390.07 = 822,511.20/x
  3. Step 3: Cross multiply
    1,434,335.40x = 1,979,390.07 × 822,511.20
  4. Step 4: Simplify right side
    1,434,335.40x = 1,628,070,501,743.78
  5. Step 5: Solve for x
    x = 1,628,070,501,743.78/1,434,335.40
  6. Step 6: Final answer
    x = 1,135,069.60

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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.