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Finding the Fourth Proportional to 633,879.96, 874,250.46 and 538,701.72

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Solution

The fourth proportional to 633,879.96, 874,250.46 and 538,701.72 is: 742,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,879.96 : 874,250.46 = 538,701.72 : x
  2. Step 2: Convert to fraction form
    633,879.96/874,250.46 = 538,701.72/x
  3. Step 3: Cross multiply
    633,879.96x = 874,250.46 × 538,701.72
  4. Step 4: Simplify right side
    633,879.96x = 470,960,226,512.79
  5. Step 5: Solve for x
    x = 470,960,226,512.79/633,879.96
  6. Step 6: Final answer
    x = 742,980.15

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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.