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Finding the Fourth Proportional to 624,271.80, 935,025.30 and 513,679.80

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Solution

The fourth proportional to 624,271.80, 935,025.30 and 513,679.80 is: 769,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,271.80 : 935,025.30 = 513,679.80 : x
  2. Step 2: Convert to fraction form
    624,271.80/935,025.30 = 513,679.80/x
  3. Step 3: Cross multiply
    624,271.80x = 935,025.30 × 513,679.80
  4. Step 4: Simplify right side
    624,271.80x = 480,303,609,098.94
  5. Step 5: Solve for x
    x = 480,303,609,098.94/624,271.80
  6. Step 6: Final answer
    x = 769,382.20

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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.