Home / 1,426,394.13-1,968,419.83-781,812.33

Finding the Fourth Proportional to 1,426,394.13, 1,968,419.83 and 781,812.33

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Solution

The fourth proportional to 1,426,394.13, 1,968,419.83 and 781,812.33 is: 1,078,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,394.13 : 1,968,419.83 = 781,812.33 : x
  2. Step 2: Convert to fraction form
    1,426,394.13/1,968,419.83 = 781,812.33/x
  3. Step 3: Cross multiply
    1,426,394.13x = 1,968,419.83 × 781,812.33
  4. Step 4: Simplify right side
    1,426,394.13x = 1,538,934,893,710.50
  5. Step 5: Solve for x
    x = 1,538,934,893,710.50/1,426,394.13
  6. Step 6: Final answer
    x = 1,078,898.78

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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.