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Finding the Fourth Proportional to 624,289.80, 935,052.30 and 513,697.80

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Solution

The fourth proportional to 624,289.80, 935,052.30 and 513,697.80 is: 769,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,289.80 : 935,052.30 = 513,697.80 : x
  2. Step 2: Convert to fraction form
    624,289.80/935,052.30 = 513,697.80/x
  3. Step 3: Cross multiply
    624,289.80x = 935,052.30 × 513,697.80
  4. Step 4: Simplify right side
    624,289.80x = 480,334,309,394.94
  5. Step 5: Solve for x
    x = 480,334,309,394.94/624,289.80
  6. Step 6: Final answer
    x = 769,409.19

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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.