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Finding the Fourth Proportional to 489,938.51, 733,624.72 and 320,927.15

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Solution

The fourth proportional to 489,938.51, 733,624.72 and 320,927.15 is: 480,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,938.51 : 733,624.72 = 320,927.15 : x
  2. Step 2: Convert to fraction form
    489,938.51/733,624.72 = 320,927.15/x
  3. Step 3: Cross multiply
    489,938.51x = 733,624.72 × 320,927.15
  4. Step 4: Simplify right side
    489,938.51x = 235,440,086,088.71
  5. Step 5: Solve for x
    x = 235,440,086,088.71/489,938.51
  6. Step 6: Final answer
    x = 480,550.28

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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.