Home / 805,437.32-1,111,480.50-442,860.68

Finding the Fourth Proportional to 805,437.32, 1,111,480.50 and 442,860.68

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Solution

The fourth proportional to 805,437.32, 1,111,480.50 and 442,860.68 is: 611,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,437.32 : 1,111,480.50 = 442,860.68 : x
  2. Step 2: Convert to fraction form
    805,437.32/1,111,480.50 = 442,860.68/x
  3. Step 3: Cross multiply
    805,437.32x = 1,111,480.50 × 442,860.68
  4. Step 4: Simplify right side
    805,437.32x = 492,231,010,036.74
  5. Step 5: Solve for x
    x = 492,231,010,036.74/805,437.32
  6. Step 6: Final answer
    x = 611,135.09

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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.