Home / 1,543,280.42-2,129,839.18-931,582.20

Finding the Fourth Proportional to 1,543,280.42, 2,129,839.18 and 931,582.20

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Solution

The fourth proportional to 1,543,280.42, 2,129,839.18 and 931,582.20 is: 1,285,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,280.42 : 2,129,839.18 = 931,582.20 : x
  2. Step 2: Convert to fraction form
    1,543,280.42/2,129,839.18 = 931,582.20/x
  3. Step 3: Cross multiply
    1,543,280.42x = 2,129,839.18 × 931,582.20
  4. Step 4: Simplify right side
    1,543,280.42x = 1,984,120,268,950.60
  5. Step 5: Solve for x
    x = 1,984,120,268,950.60/1,543,280.42
  6. Step 6: Final answer
    x = 1,285,651.16

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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.