Home / 809,421.78-1,116,972.69-446,837.82

Finding the Fourth Proportional to 809,421.78, 1,116,972.69 and 446,837.82

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Solution

The fourth proportional to 809,421.78, 1,116,972.69 and 446,837.82 is: 616,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,421.78 : 1,116,972.69 = 446,837.82 : x
  2. Step 2: Convert to fraction form
    809,421.78/1,116,972.69 = 446,837.82/x
  3. Step 3: Cross multiply
    809,421.78x = 1,116,972.69 × 446,837.82
  4. Step 4: Simplify right side
    809,421.78x = 499,105,641,799.14
  5. Step 5: Solve for x
    x = 499,105,641,799.14/809,421.78
  6. Step 6: Final answer
    x = 616,619.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.