Home / 630,303.45-945,463.40-209,579.32

Finding the Fourth Proportional to 630,303.45, 945,463.40 and 209,579.32

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Solution

The fourth proportional to 630,303.45, 945,463.40 and 209,579.32 is: 314,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,303.45 : 945,463.40 = 209,579.32 : x
  2. Step 2: Convert to fraction form
    630,303.45/945,463.40 = 209,579.32/x
  3. Step 3: Cross multiply
    630,303.45x = 945,463.40 × 209,579.32
  4. Step 4: Simplify right side
    630,303.45x = 198,149,576,456.89
  5. Step 5: Solve for x
    x = 198,149,576,456.89/630,303.45
  6. Step 6: Final answer
    x = 314,371.71

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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.