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Finding the Fourth Proportional to 624,297.80, 935,064.30 and 513,705.80

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Solution

The fourth proportional to 624,297.80, 935,064.30 and 513,705.80 is: 769,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,297.80 : 935,064.30 = 513,705.80 : x
  2. Step 2: Convert to fraction form
    624,297.80/935,064.30 = 513,705.80/x
  3. Step 3: Cross multiply
    624,297.80x = 935,064.30 × 513,705.80
  4. Step 4: Simplify right side
    624,297.80x = 480,347,954,282.94
  5. Step 5: Solve for x
    x = 480,347,954,282.94/624,297.80
  6. Step 6: Final answer
    x = 769,421.19

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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.