Home / 1,288,427.79-1,932,322.32-435,480.49

Finding the Fourth Proportional to 1,288,427.79, 1,932,322.32 and 435,480.49

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Solution

The fourth proportional to 1,288,427.79, 1,932,322.32 and 435,480.49 is: 653,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,427.79 : 1,932,322.32 = 435,480.49 : x
  2. Step 2: Convert to fraction form
    1,288,427.79/1,932,322.32 = 435,480.49/x
  3. Step 3: Cross multiply
    1,288,427.79x = 1,932,322.32 × 435,480.49
  4. Step 4: Simplify right side
    1,288,427.79x = 841,488,670,751.54
  5. Step 5: Solve for x
    x = 841,488,670,751.54/1,288,427.79
  6. Step 6: Final answer
    x = 653,112.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.