Home / 803,421.85-1,205,139.59-204,383.52

Finding the Fourth Proportional to 803,421.85, 1,205,139.59 and 204,383.52

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Solution

The fourth proportional to 803,421.85, 1,205,139.59 and 204,383.52 is: 306,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,421.85 : 1,205,139.59 = 204,383.52 : x
  2. Step 2: Convert to fraction form
    803,421.85/1,205,139.59 = 204,383.52/x
  3. Step 3: Cross multiply
    803,421.85x = 1,205,139.59 × 204,383.52
  4. Step 4: Simplify right side
    803,421.85x = 246,310,665,980.82
  5. Step 5: Solve for x
    x = 246,310,665,980.82/803,421.85
  6. Step 6: Final answer
    x = 306,577.01

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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.