Home / 1,409,666.76-1,945,323.95-765,087.39

Finding the Fourth Proportional to 1,409,666.76, 1,945,323.95 and 765,087.39

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Solution

The fourth proportional to 1,409,666.76, 1,945,323.95 and 765,087.39 is: 1,055,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,666.76 : 1,945,323.95 = 765,087.39 : x
  2. Step 2: Convert to fraction form
    1,409,666.76/1,945,323.95 = 765,087.39/x
  3. Step 3: Cross multiply
    1,409,666.76x = 1,945,323.95 × 765,087.39
  4. Step 4: Simplify right side
    1,409,666.76x = 1,488,342,819,784.55
  5. Step 5: Solve for x
    x = 1,488,342,819,784.55/1,409,666.76
  6. Step 6: Final answer
    x = 1,055,811.81

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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.