Home / 419,228.46-578,534.40-228,240.18

Finding the Fourth Proportional to 419,228.46, 578,534.40 and 228,240.18

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Solution

The fourth proportional to 419,228.46, 578,534.40 and 228,240.18 is: 314,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,228.46 : 578,534.40 = 228,240.18 : x
  2. Step 2: Convert to fraction form
    419,228.46/578,534.40 = 228,240.18/x
  3. Step 3: Cross multiply
    419,228.46x = 578,534.40 × 228,240.18
  4. Step 4: Simplify right side
    419,228.46x = 132,044,795,592.19
  5. Step 5: Solve for x
    x = 132,044,795,592.19/419,228.46
  6. Step 6: Final answer
    x = 314,970.97

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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.