Home / 1,428,965.69-2,142,996.80-469,263.11

Finding the Fourth Proportional to 1,428,965.69, 2,142,996.80 and 469,263.11

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Solution

The fourth proportional to 1,428,965.69, 2,142,996.80 and 469,263.11 is: 703,746.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,965.69 : 2,142,996.80 = 469,263.11 : x
  2. Step 2: Convert to fraction form
    1,428,965.69/2,142,996.80 = 469,263.11/x
  3. Step 3: Cross multiply
    1,428,965.69x = 2,142,996.80 × 469,263.11
  4. Step 4: Simplify right side
    1,428,965.69x = 1,005,629,330,026.75
  5. Step 5: Solve for x
    x = 1,005,629,330,026.75/1,428,965.69
  6. Step 6: Final answer
    x = 703,746.31

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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.