Home / 409,760.06-565,440-228,464.24

Finding the Fourth Proportional to 409,760.06, 565,440 and 228,464.24

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Solution

The fourth proportional to 409,760.06, 565,440 and 228,464.24 is: 315,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,760.06 : 565,440 = 228,464.24 : x
  2. Step 2: Convert to fraction form
    409,760.06/565,440 = 228,464.24/x
  3. Step 3: Cross multiply
    409,760.06x = 565,440 × 228,464.24
  4. Step 4: Simplify right side
    409,760.06x = 129,182,817,038.40
  5. Step 5: Solve for x
    x = 129,182,817,038.40/409,760.06
  6. Step 6: Final answer
    x = 315,264.54

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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.