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Finding the Fourth Proportional to 630,775.50, 946,556.91 and 256,798.50

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Solution

The fourth proportional to 630,775.50, 946,556.91 and 256,798.50 is: 385,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,775.50 : 946,556.91 = 256,798.50 : x
  2. Step 2: Convert to fraction form
    630,775.50/946,556.91 = 256,798.50/x
  3. Step 3: Cross multiply
    630,775.50x = 946,556.91 × 256,798.50
  4. Step 4: Simplify right side
    630,775.50x = 243,074,394,652.64
  5. Step 5: Solve for x
    x = 243,074,394,652.64/630,775.50
  6. Step 6: Final answer
    x = 385,358.02

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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.