Home / 379,544.21-523,431.79-314,911.13

Finding the Fourth Proportional to 379,544.21, 523,431.79 and 314,911.13

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Solution

The fourth proportional to 379,544.21, 523,431.79 and 314,911.13 is: 434,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,544.21 : 523,431.79 = 314,911.13 : x
  2. Step 2: Convert to fraction form
    379,544.21/523,431.79 = 314,911.13/x
  3. Step 3: Cross multiply
    379,544.21x = 523,431.79 × 314,911.13
  4. Step 4: Simplify right side
    379,544.21x = 164,834,496,206.17
  5. Step 5: Solve for x
    x = 164,834,496,206.17/379,544.21
  6. Step 6: Final answer
    x = 434,295.91

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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.