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Finding the Fourth Proportional to 620,549.17, 930,349.90 and 283,355.69

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Solution

The fourth proportional to 620,549.17, 930,349.90 and 283,355.69 is: 424,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,549.17 : 930,349.90 = 283,355.69 : x
  2. Step 2: Convert to fraction form
    620,549.17/930,349.90 = 283,355.69/x
  3. Step 3: Cross multiply
    620,549.17x = 930,349.90 × 283,355.69
  4. Step 4: Simplify right side
    620,549.17x = 263,619,933,558.38
  5. Step 5: Solve for x
    x = 263,619,933,558.38/620,549.17
  6. Step 6: Final answer
    x = 424,817.16

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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.