Home / 1,458,357.82-2,012,635.47-813,788.71

Finding the Fourth Proportional to 1,458,357.82, 2,012,635.47 and 813,788.71

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Solution

The fourth proportional to 1,458,357.82, 2,012,635.47 and 813,788.71 is: 1,123,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,357.82 : 2,012,635.47 = 813,788.71 : x
  2. Step 2: Convert to fraction form
    1,458,357.82/2,012,635.47 = 813,788.71/x
  3. Step 3: Cross multiply
    1,458,357.82x = 2,012,635.47 × 813,788.71
  4. Step 4: Simplify right side
    1,458,357.82x = 1,637,860,022,831.54
  5. Step 5: Solve for x
    x = 1,637,860,022,831.54/1,458,357.82
  6. Step 6: Final answer
    x = 1,123,085.16

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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.