Home / 454,985.20-683,039.40-286,505.20

Finding the Fourth Proportional to 454,985.20, 683,039.40 and 286,505.20

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Solution

The fourth proportional to 454,985.20, 683,039.40 and 286,505.20 is: 430,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,985.20 : 683,039.40 = 286,505.20 : x
  2. Step 2: Convert to fraction form
    454,985.20/683,039.40 = 286,505.20/x
  3. Step 3: Cross multiply
    454,985.20x = 683,039.40 × 286,505.20
  4. Step 4: Simplify right side
    454,985.20x = 195,694,339,904.88
  5. Step 5: Solve for x
    x = 195,694,339,904.88/454,985.20
  6. Step 6: Final answer
    x = 430,111.44

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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.