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Finding the Fourth Proportional to 630,226.59, 944,406.23 and 518,699.31

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Solution

The fourth proportional to 630,226.59, 944,406.23 and 518,699.31 is: 777,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,226.59 : 944,406.23 = 518,699.31 : x
  2. Step 2: Convert to fraction form
    630,226.59/944,406.23 = 518,699.31/x
  3. Step 3: Cross multiply
    630,226.59x = 944,406.23 × 518,699.31
  4. Step 4: Simplify right side
    630,226.59x = 489,862,857,267.21
  5. Step 5: Solve for x
    x = 489,862,857,267.21/630,226.59
  6. Step 6: Final answer
    x = 777,280.53

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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.