Home / 1,409,711.39-1,945,349.67-765,117.74

Finding the Fourth Proportional to 1,409,711.39, 1,945,349.67 and 765,117.74

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Solution

The fourth proportional to 1,409,711.39, 1,945,349.67 and 765,117.74 is: 1,055,834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,711.39 : 1,945,349.67 = 765,117.74 : x
  2. Step 2: Convert to fraction form
    1,409,711.39/1,945,349.67 = 765,117.74/x
  3. Step 3: Cross multiply
    1,409,711.39x = 1,945,349.67 × 765,117.74
  4. Step 4: Simplify right side
    1,409,711.39x = 1,488,421,533,293.40
  5. Step 5: Solve for x
    x = 1,488,421,533,293.40/1,409,711.39
  6. Step 6: Final answer
    x = 1,055,834.23

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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.