Home / 1,543,521.60-2,130,172.56-931,824.72

Finding the Fourth Proportional to 1,543,521.60, 2,130,172.56 and 931,824.72

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Solution

The fourth proportional to 1,543,521.60, 2,130,172.56 and 931,824.72 is: 1,285,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,521.60 : 2,130,172.56 = 931,824.72 : x
  2. Step 2: Convert to fraction form
    1,543,521.60/2,130,172.56 = 931,824.72/x
  3. Step 3: Cross multiply
    1,543,521.60x = 2,130,172.56 × 931,824.72
  4. Step 4: Simplify right side
    1,543,521.60x = 1,984,947,449,273.68
  5. Step 5: Solve for x
    x = 1,984,947,449,273.68/1,543,521.60
  6. Step 6: Final answer
    x = 1,285,986.18

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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.