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Finding the Fourth Proportional to 630,628.34, 945,484.26 and 251,435.34

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Solution

The fourth proportional to 630,628.34, 945,484.26 and 251,435.34 is: 376,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,628.34 : 945,484.26 = 251,435.34 : x
  2. Step 2: Convert to fraction form
    630,628.34/945,484.26 = 251,435.34/x
  3. Step 3: Cross multiply
    630,628.34x = 945,484.26 × 251,435.34
  4. Step 4: Simplify right side
    630,628.34x = 237,728,155,434.87
  5. Step 5: Solve for x
    x = 237,728,155,434.87/630,628.34
  6. Step 6: Final answer
    x = 376,970.30

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1.5x scale

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.