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Finding the Fourth Proportional to 427,699.64, 590,204.48 and 243,945.47

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Solution

The fourth proportional to 427,699.64, 590,204.48 and 243,945.47 is: 336,632.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,699.64 : 590,204.48 = 243,945.47 : x
  2. Step 2: Convert to fraction form
    427,699.64/590,204.48 = 243,945.47/x
  3. Step 3: Cross multiply
    427,699.64x = 590,204.48 × 243,945.47
  4. Step 4: Simplify right side
    427,699.64x = 143,977,709,525.49
  5. Step 5: Solve for x
    x = 143,977,709,525.49/427,699.64
  6. Step 6: Final answer
    x = 336,632.76

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1.5x scale

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.