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Finding the Fourth Proportional to 448,496.16, 618,281.60 and 352,836.72

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Solution

The fourth proportional to 448,496.16, 618,281.60 and 352,836.72 is: 486,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,496.16 : 618,281.60 = 352,836.72 : x
  2. Step 2: Convert to fraction form
    448,496.16/618,281.60 = 352,836.72/x
  3. Step 3: Cross multiply
    448,496.16x = 618,281.60 × 352,836.72
  4. Step 4: Simplify right side
    448,496.16x = 218,152,451,780.35
  5. Step 5: Solve for x
    x = 218,152,451,780.35/448,496.16
  6. Step 6: Final answer
    x = 486,408.74

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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.