Home / 1,079,938.24-1,620,000.38-281,221.24

Finding the Fourth Proportional to 1,079,938.24, 1,620,000.38 and 281,221.24

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Solution

The fourth proportional to 1,079,938.24, 1,620,000.38 and 281,221.24 is: 421,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,938.24 : 1,620,000.38 = 281,221.24 : x
  2. Step 2: Convert to fraction form
    1,079,938.24/1,620,000.38 = 281,221.24/x
  3. Step 3: Cross multiply
    1,079,938.24x = 1,620,000.38 × 281,221.24
  4. Step 4: Simplify right side
    1,079,938.24x = 455,578,507,564.07
  5. Step 5: Solve for x
    x = 455,578,507,564.07/1,079,938.24
  6. Step 6: Final answer
    x = 421,856.08

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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.