Home / 803,889.42-1,204,916.86-323,809.80

Finding the Fourth Proportional to 803,889.42, 1,204,916.86 and 323,809.80

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Solution

The fourth proportional to 803,889.42, 1,204,916.86 and 323,809.80 is: 485,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,889.42 : 1,204,916.86 = 323,809.80 : x
  2. Step 2: Convert to fraction form
    803,889.42/1,204,916.86 = 323,809.80/x
  3. Step 3: Cross multiply
    803,889.42x = 1,204,916.86 × 323,809.80
  4. Step 4: Simplify right side
    803,889.42x = 390,163,887,453.23
  5. Step 5: Solve for x
    x = 390,163,887,453.23/803,889.42
  6. Step 6: Final answer
    x = 485,345.22

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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.