Home / 1,409,390.40-1,944,963.84-764,810.57

Finding the Fourth Proportional to 1,409,390.40, 1,944,963.84 and 764,810.57

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Solution

The fourth proportional to 1,409,390.40, 1,944,963.84 and 764,810.57 is: 1,055,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,390.40 : 1,944,963.84 = 764,810.57 : x
  2. Step 2: Convert to fraction form
    1,409,390.40/1,944,963.84 = 764,810.57/x
  3. Step 3: Cross multiply
    1,409,390.40x = 1,944,963.84 × 764,810.57
  4. Step 4: Simplify right side
    1,409,390.40x = 1,487,528,893,374.97
  5. Step 5: Solve for x
    x = 1,487,528,893,374.97/1,409,390.40
  6. Step 6: Final answer
    x = 1,055,441.34

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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.