Home / 771,558.48-1,064,578.50-465,684.48

Finding the Fourth Proportional to 771,558.48, 1,064,578.50 and 465,684.48

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Solution

The fourth proportional to 771,558.48, 1,064,578.50 and 465,684.48 is: 642,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,558.48 : 1,064,578.50 = 465,684.48 : x
  2. Step 2: Convert to fraction form
    771,558.48/1,064,578.50 = 465,684.48/x
  3. Step 3: Cross multiply
    771,558.48x = 1,064,578.50 × 465,684.48
  4. Step 4: Simplify right side
    771,558.48x = 495,757,685,191.68
  5. Step 5: Solve for x
    x = 495,757,685,191.68/771,558.48
  6. Step 6: Final answer
    x = 642,540.65

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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.