Home / 1,543,281.42-2,129,840.56-931,583.20

Finding the Fourth Proportional to 1,543,281.42, 2,129,840.56 and 931,583.20

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Solution

The fourth proportional to 1,543,281.42, 2,129,840.56 and 931,583.20 is: 1,285,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,281.42 : 2,129,840.56 = 931,583.20 : x
  2. Step 2: Convert to fraction form
    1,543,281.42/2,129,840.56 = 931,583.20/x
  3. Step 3: Cross multiply
    1,543,281.42x = 2,129,840.56 × 931,583.20
  4. Step 4: Simplify right side
    1,543,281.42x = 1,984,123,684,374.59
  5. Step 5: Solve for x
    x = 1,984,123,684,374.59/1,543,281.42
  6. Step 6: Final answer
    x = 1,285,652.54

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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.