Home / 1,318,460-1,976,517.12-476,824.64

Finding the Fourth Proportional to 1,318,460, 1,976,517.12 and 476,824.64

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Solution

The fourth proportional to 1,318,460, 1,976,517.12 and 476,824.64 is: 714,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,460 : 1,976,517.12 = 476,824.64 : x
  2. Step 2: Convert to fraction form
    1,318,460/1,976,517.12 = 476,824.64/x
  3. Step 3: Cross multiply
    1,318,460x = 1,976,517.12 × 476,824.64
  4. Step 4: Simplify right side
    1,318,460x = 942,452,064,197.84
  5. Step 5: Solve for x
    x = 942,452,064,197.84/1,318,460
  6. Step 6: Final answer
    x = 714,812.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.