Home / 630,911.46-945,579.60-315,458.58

Finding the Fourth Proportional to 630,911.46, 945,579.60 and 315,458.58

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Solution

The fourth proportional to 630,911.46, 945,579.60 and 315,458.58 is: 472,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,911.46 : 945,579.60 = 315,458.58 : x
  2. Step 2: Convert to fraction form
    630,911.46/945,579.60 = 315,458.58/x
  3. Step 3: Cross multiply
    630,911.46x = 945,579.60 × 315,458.58
  4. Step 4: Simplify right side
    630,911.46x = 298,291,197,892.97
  5. Step 5: Solve for x
    x = 298,291,197,892.97/630,911.46
  6. Step 6: Final answer
    x = 472,794.07

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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.