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Finding the Fourth Proportional to 448,498.64, 618,915.40 and 247,294.80

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Solution

The fourth proportional to 448,498.64, 618,915.40 and 247,294.80 is: 341,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,498.64 : 618,915.40 = 247,294.80 : x
  2. Step 2: Convert to fraction form
    448,498.64/618,915.40 = 247,294.80/x
  3. Step 3: Cross multiply
    448,498.64x = 618,915.40 × 247,294.80
  4. Step 4: Simplify right side
    448,498.64x = 153,054,560,059.92
  5. Step 5: Solve for x
    x = 153,054,560,059.92/448,498.64
  6. Step 6: Final answer
    x = 341,259.81

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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.