Home / 820,032.64-1,230,045.12-259,066.24

Finding the Fourth Proportional to 820,032.64, 1,230,045.12 and 259,066.24

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Solution

The fourth proportional to 820,032.64, 1,230,045.12 and 259,066.24 is: 388,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,032.64 : 1,230,045.12 = 259,066.24 : x
  2. Step 2: Convert to fraction form
    820,032.64/1,230,045.12 = 259,066.24/x
  3. Step 3: Cross multiply
    820,032.64x = 1,230,045.12 × 259,066.24
  4. Step 4: Simplify right side
    820,032.64x = 318,663,164,268.75
  5. Step 5: Solve for x
    x = 318,663,164,268.75/820,032.64
  6. Step 6: Final answer
    x = 388,598.15

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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.