Home / 427,391.15-589,814.36-243,656.90

Finding the Fourth Proportional to 427,391.15, 589,814.36 and 243,656.90

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Solution

The fourth proportional to 427,391.15, 589,814.36 and 243,656.90 is: 336,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,391.15 : 589,814.36 = 243,656.90 : x
  2. Step 2: Convert to fraction form
    427,391.15/589,814.36 = 243,656.90/x
  3. Step 3: Cross multiply
    427,391.15x = 589,814.36 × 243,656.90
  4. Step 4: Simplify right side
    427,391.15x = 143,712,334,365.73
  5. Step 5: Solve for x
    x = 143,712,334,365.73/427,391.15
  6. Step 6: Final answer
    x = 336,254.82

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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.