Home / 811,460.88-1,217,302.02-338,035.50

Finding the Fourth Proportional to 811,460.88, 1,217,302.02 and 338,035.50

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Solution

The fourth proportional to 811,460.88, 1,217,302.02 and 338,035.50 is: 507,099.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,460.88 : 1,217,302.02 = 338,035.50 : x
  2. Step 2: Convert to fraction form
    811,460.88/1,217,302.02 = 338,035.50/x
  3. Step 3: Cross multiply
    811,460.88x = 1,217,302.02 × 338,035.50
  4. Step 4: Simplify right side
    811,460.88x = 411,491,296,981.71
  5. Step 5: Solve for x
    x = 411,491,296,981.71/811,460.88
  6. Step 6: Final answer
    x = 507,099.37

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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.