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Finding the Fourth Proportional to 427,561.28, 590,009.92 and 236,563.28

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Solution

The fourth proportional to 427,561.28, 590,009.92 and 236,563.28 is: 326,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,561.28 : 590,009.92 = 236,563.28 : x
  2. Step 2: Convert to fraction form
    427,561.28/590,009.92 = 236,563.28/x
  3. Step 3: Cross multiply
    427,561.28x = 590,009.92 × 236,563.28
  4. Step 4: Simplify right side
    427,561.28x = 139,574,681,907.74
  5. Step 5: Solve for x
    x = 139,574,681,907.74/427,561.28
  6. Step 6: Final answer
    x = 326,443.69

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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.