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Finding the Fourth Proportional to 630,303.66, 945,463.68 and 209,579.52

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Solution

The fourth proportional to 630,303.66, 945,463.68 and 209,579.52 is: 314,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,303.66 : 945,463.68 = 209,579.52 : x
  2. Step 2: Convert to fraction form
    630,303.66/945,463.68 = 209,579.52/x
  3. Step 3: Cross multiply
    630,303.66x = 945,463.68 × 209,579.52
  4. Step 4: Simplify right side
    630,303.66x = 198,149,824,231.83
  5. Step 5: Solve for x
    x = 198,149,824,231.83/630,303.66
  6. Step 6: Final answer
    x = 314,372.00

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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.