Home / 448,376.28-618,931.98-328,469.91

Finding the Fourth Proportional to 448,376.28, 618,931.98 and 328,469.91

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Solution

The fourth proportional to 448,376.28, 618,931.98 and 328,469.91 is: 453,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,376.28 : 618,931.98 = 328,469.91 : x
  2. Step 2: Convert to fraction form
    448,376.28/618,931.98 = 328,469.91/x
  3. Step 3: Cross multiply
    448,376.28x = 618,931.98 × 328,469.91
  4. Step 4: Simplify right side
    448,376.28x = 203,300,531,766.72
  5. Step 5: Solve for x
    x = 203,300,531,766.72/448,376.28
  6. Step 6: Final answer
    x = 453,415.00

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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.