Home / 1,418,820.39-1,958,013.79-774,282.20

Finding the Fourth Proportional to 1,418,820.39, 1,958,013.79 and 774,282.20

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Solution

The fourth proportional to 1,418,820.39, 1,958,013.79 and 774,282.20 is: 1,068,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,820.39 : 1,958,013.79 = 774,282.20 : x
  2. Step 2: Convert to fraction form
    1,418,820.39/1,958,013.79 = 774,282.20/x
  3. Step 3: Cross multiply
    1,418,820.39x = 1,958,013.79 × 774,282.20
  4. Step 4: Simplify right side
    1,418,820.39x = 1,516,055,213,225.76
  5. Step 5: Solve for x
    x = 1,516,055,213,225.76/1,418,820.39
  6. Step 6: Final answer
    x = 1,068,532.16

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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.