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Finding the Fourth Proportional to 522,565.36, 783,764.13 and 143,397.54

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Solution

The fourth proportional to 522,565.36, 783,764.13 and 143,397.54 is: 215,073.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,565.36 : 783,764.13 = 143,397.54 : x
  2. Step 2: Convert to fraction form
    522,565.36/783,764.13 = 143,397.54/x
  3. Step 3: Cross multiply
    522,565.36x = 783,764.13 × 143,397.54
  4. Step 4: Simplify right side
    522,565.36x = 112,389,848,182.24
  5. Step 5: Solve for x
    x = 112,389,848,182.24/522,565.36
  6. Step 6: Final answer
    x = 215,073.28

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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.