Home / 862,788.40-1,190,737.04-518,736.88

Finding the Fourth Proportional to 862,788.40, 1,190,737.04 and 518,736.88

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Solution

The fourth proportional to 862,788.40, 1,190,737.04 and 518,736.88 is: 715,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,788.40 : 1,190,737.04 = 518,736.88 : x
  2. Step 2: Convert to fraction form
    862,788.40/1,190,737.04 = 518,736.88/x
  3. Step 3: Cross multiply
    862,788.40x = 1,190,737.04 × 518,736.88
  4. Step 4: Simplify right side
    862,788.40x = 617,679,217,030.04
  5. Step 5: Solve for x
    x = 617,679,217,030.04/862,788.40
  6. Step 6: Final answer
    x = 715,910.43

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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.