Home / 456,020.20-683,252.70-389,146.60

Finding the Fourth Proportional to 456,020.20, 683,252.70 and 389,146.60

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Solution

The fourth proportional to 456,020.20, 683,252.70 and 389,146.60 is: 583,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,020.20 : 683,252.70 = 389,146.60 : x
  2. Step 2: Convert to fraction form
    456,020.20/683,252.70 = 389,146.60/x
  3. Step 3: Cross multiply
    456,020.20x = 683,252.70 × 389,146.60
  4. Step 4: Simplify right side
    456,020.20x = 265,885,465,145.82
  5. Step 5: Solve for x
    x = 265,885,465,145.82/456,020.20
  6. Step 6: Final answer
    x = 583,056.33

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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.