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Finding the Fourth Proportional to 554,136.23, 764,706.85 and 299,486.81

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Solution

The fourth proportional to 554,136.23, 764,706.85 and 299,486.81 is: 413,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,136.23 : 764,706.85 = 299,486.81 : x
  2. Step 2: Convert to fraction form
    554,136.23/764,706.85 = 299,486.81/x
  3. Step 3: Cross multiply
    554,136.23x = 764,706.85 × 299,486.81
  4. Step 4: Simplify right side
    554,136.23x = 229,019,616,254.70
  5. Step 5: Solve for x
    x = 229,019,616,254.70/554,136.23
  6. Step 6: Final answer
    x = 413,291.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.