Home / 811,350.66-1,217,623.96-384,887.82

Finding the Fourth Proportional to 811,350.66, 1,217,623.96 and 384,887.82

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Solution

The fourth proportional to 811,350.66, 1,217,623.96 and 384,887.82 is: 577,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,350.66 : 1,217,623.96 = 384,887.82 : x
  2. Step 2: Convert to fraction form
    811,350.66/1,217,623.96 = 384,887.82/x
  3. Step 3: Cross multiply
    811,350.66x = 1,217,623.96 × 384,887.82
  4. Step 4: Simplify right side
    811,350.66x = 468,648,631,544.17
  5. Step 5: Solve for x
    x = 468,648,631,544.17/811,350.66
  6. Step 6: Final answer
    x = 577,615.39

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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.