Home / 1,620,862.16-2,431,108.92-438,818

Finding the Fourth Proportional to 1,620,862.16, 2,431,108.92 and 438,818

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Solution

The fourth proportional to 1,620,862.16, 2,431,108.92 and 438,818 is: 658,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,862.16 : 2,431,108.92 = 438,818 : x
  2. Step 2: Convert to fraction form
    1,620,862.16/2,431,108.92 = 438,818/x
  3. Step 3: Cross multiply
    1,620,862.16x = 2,431,108.92 × 438,818
  4. Step 4: Simplify right side
    1,620,862.16x = 1,066,814,354,056.56
  5. Step 5: Solve for x
    x = 1,066,814,354,056.56/1,620,862.16
  6. Step 6: Final answer
    x = 658,177.10

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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.