Home / 881,710.93-1,216,775.15-499,729.51

Finding the Fourth Proportional to 881,710.93, 1,216,775.15 and 499,729.51

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Solution

The fourth proportional to 881,710.93, 1,216,775.15 and 499,729.51 is: 689,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,710.93 : 1,216,775.15 = 499,729.51 : x
  2. Step 2: Convert to fraction form
    881,710.93/1,216,775.15 = 499,729.51/x
  3. Step 3: Cross multiply
    881,710.93x = 1,216,775.15 × 499,729.51
  4. Step 4: Simplify right side
    881,710.93x = 608,058,449,489.68
  5. Step 5: Solve for x
    x = 608,058,449,489.68/881,710.93
  6. Step 6: Final answer
    x = 689,634.70

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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.