Home / 1,386,066.88-1,912,751.58-774,230.68

Finding the Fourth Proportional to 1,386,066.88, 1,912,751.58 and 774,230.68

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Solution

The fourth proportional to 1,386,066.88, 1,912,751.58 and 774,230.68 is: 1,068,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,066.88 : 1,912,751.58 = 774,230.68 : x
  2. Step 2: Convert to fraction form
    1,386,066.88/1,912,751.58 = 774,230.68/x
  3. Step 3: Cross multiply
    1,386,066.88x = 1,912,751.58 × 774,230.68
  4. Step 4: Simplify right side
    1,386,066.88x = 1,480,910,956,454.47
  5. Step 5: Solve for x
    x = 1,480,910,956,454.47/1,386,066.88
  6. Step 6: Final answer
    x = 1,068,426.77

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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.