Home / 1,518,970.59-2,278,954.79-621,167.46

Finding the Fourth Proportional to 1,518,970.59, 2,278,954.79 and 621,167.46

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Solution

The fourth proportional to 1,518,970.59, 2,278,954.79 and 621,167.46 is: 931,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,970.59 : 2,278,954.79 = 621,167.46 : x
  2. Step 2: Convert to fraction form
    1,518,970.59/2,278,954.79 = 621,167.46/x
  3. Step 3: Cross multiply
    1,518,970.59x = 2,278,954.79 × 621,167.46
  4. Step 4: Simplify right side
    1,518,970.59x = 1,415,612,558,359.13
  5. Step 5: Solve for x
    x = 1,415,612,558,359.13/1,518,970.59
  6. Step 6: Final answer
    x = 931,955.21

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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.