Home / 420,352.34-580,099.04-239,090.38

Finding the Fourth Proportional to 420,352.34, 580,099.04 and 239,090.38

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Solution

The fourth proportional to 420,352.34, 580,099.04 and 239,090.38 is: 329,952.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,352.34 : 580,099.04 = 239,090.38 : x
  2. Step 2: Convert to fraction form
    420,352.34/580,099.04 = 239,090.38/x
  3. Step 3: Cross multiply
    420,352.34x = 580,099.04 × 239,090.38
  4. Step 4: Simplify right side
    420,352.34x = 138,696,102,097.62
  5. Step 5: Solve for x
    x = 138,696,102,097.62/420,352.34
  6. Step 6: Final answer
    x = 329,952.02

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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.