Home / 858,402.72-1,184,321.52-495,778.68

Finding the Fourth Proportional to 858,402.72, 1,184,321.52 and 495,778.68

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Solution

The fourth proportional to 858,402.72, 1,184,321.52 and 495,778.68 is: 684,016.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,402.72 : 1,184,321.52 = 495,778.68 : x
  2. Step 2: Convert to fraction form
    858,402.72/1,184,321.52 = 495,778.68/x
  3. Step 3: Cross multiply
    858,402.72x = 1,184,321.52 × 495,778.68
  4. Step 4: Simplify right side
    858,402.72x = 587,161,359,881.19
  5. Step 5: Solve for x
    x = 587,161,359,881.19/858,402.72
  6. Step 6: Final answer
    x = 684,016.19

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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.