Home / 755,667.32-1,042,741.49-428,876.40

Finding the Fourth Proportional to 755,667.32, 1,042,741.49 and 428,876.40

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Solution

The fourth proportional to 755,667.32, 1,042,741.49 and 428,876.40 is: 591,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,667.32 : 1,042,741.49 = 428,876.40 : x
  2. Step 2: Convert to fraction form
    755,667.32/1,042,741.49 = 428,876.40/x
  3. Step 3: Cross multiply
    755,667.32x = 1,042,741.49 × 428,876.40
  4. Step 4: Simplify right side
    755,667.32x = 447,207,214,217.45
  5. Step 5: Solve for x
    x = 447,207,214,217.45/755,667.32
  6. Step 6: Final answer
    x = 591,804.36

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1.5x scale

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.