Home / 2,307,921.79-3,185,054.01-1,390,439.76

Finding the Fourth Proportional to 2,307,921.79, 3,185,054.01 and 1,390,439.76

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Solution

The fourth proportional to 2,307,921.79, 3,185,054.01 and 1,390,439.76 is: 1,918,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307,921.79 : 3,185,054.01 = 1,390,439.76 : x
  2. Step 2: Convert to fraction form
    2,307,921.79/3,185,054.01 = 1,390,439.76/x
  3. Step 3: Cross multiply
    2,307,921.79x = 3,185,054.01 × 1,390,439.76
  4. Step 4: Simplify right side
    2,307,921.79x = 4,428,625,733,251.44
  5. Step 5: Solve for x
    x = 4,428,625,733,251.44/2,307,921.79
  6. Step 6: Final answer
    x = 1,918,880.33

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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.