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Finding the Fourth Proportional to 550,373.20, 824,539.20 and 313,010.80

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Solution

The fourth proportional to 550,373.20, 824,539.20 and 313,010.80 is: 468,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,373.20 : 824,539.20 = 313,010.80 : x
  2. Step 2: Convert to fraction form
    550,373.20/824,539.20 = 313,010.80/x
  3. Step 3: Cross multiply
    550,373.20x = 824,539.20 × 313,010.80
  4. Step 4: Simplify right side
    550,373.20x = 258,089,674,623.36
  5. Step 5: Solve for x
    x = 258,089,674,623.36/550,373.20
  6. Step 6: Final answer
    x = 468,935.76

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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.