Home / 1,386,277.76-1,912,994.69-774,308.59

Finding the Fourth Proportional to 1,386,277.76, 1,912,994.69 and 774,308.59

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Solution

The fourth proportional to 1,386,277.76, 1,912,994.69 and 774,308.59 is: 1,068,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,277.76 : 1,912,994.69 = 774,308.59 : x
  2. Step 2: Convert to fraction form
    1,386,277.76/1,912,994.69 = 774,308.59/x
  3. Step 3: Cross multiply
    1,386,277.76x = 1,912,994.69 × 774,308.59
  4. Step 4: Simplify right side
    1,386,277.76x = 1,481,248,212,437.36
  5. Step 5: Solve for x
    x = 1,481,248,212,437.36/1,386,277.76
  6. Step 6: Final answer
    x = 1,068,507.52

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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.