Home / 790,788.82-1,186,544.68-430,419.82

Finding the Fourth Proportional to 790,788.82, 1,186,544.68 and 430,419.82

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Solution

The fourth proportional to 790,788.82, 1,186,544.68 and 430,419.82 is: 645,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,788.82 : 1,186,544.68 = 430,419.82 : x
  2. Step 2: Convert to fraction form
    790,788.82/1,186,544.68 = 430,419.82/x
  3. Step 3: Cross multiply
    790,788.82x = 1,186,544.68 × 430,419.82
  4. Step 4: Simplify right side
    790,788.82x = 510,712,341,654.83
  5. Step 5: Solve for x
    x = 510,712,341,654.83/790,788.82
  6. Step 6: Final answer
    x = 645,826.46

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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.