Home / 409,405.19-565,011.55-225,676.36

Finding the Fourth Proportional to 409,405.19, 565,011.55 and 225,676.36

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Solution

The fourth proportional to 409,405.19, 565,011.55 and 225,676.36 is: 311,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,405.19 : 565,011.55 = 225,676.36 : x
  2. Step 2: Convert to fraction form
    409,405.19/565,011.55 = 225,676.36/x
  3. Step 3: Cross multiply
    409,405.19x = 565,011.55 × 225,676.36
  4. Step 4: Simplify right side
    409,405.19x = 127,509,750,950.32
  5. Step 5: Solve for x
    x = 127,509,750,950.32/409,405.19
  6. Step 6: Final answer
    x = 311,451.24

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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.