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Finding the Fourth Proportional to 788,480.50, 1,088,297.50 and 449,148.82

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Solution

The fourth proportional to 788,480.50, 1,088,297.50 and 449,148.82 is: 619,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,480.50 : 1,088,297.50 = 449,148.82 : x
  2. Step 2: Convert to fraction form
    788,480.50/1,088,297.50 = 449,148.82/x
  3. Step 3: Cross multiply
    788,480.50x = 1,088,297.50 × 449,148.82
  4. Step 4: Simplify right side
    788,480.50x = 488,807,537,933.95
  5. Step 5: Solve for x
    x = 488,807,537,933.95/788,480.50
  6. Step 6: Final answer
    x = 619,936.12

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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.