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Finding the Third Proportional to 429,345 and 630,888.75

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Solution

The third proportional to 429,345 and 630,888.75 is: 927,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,345 : 630,888.75 = 630,888.75 : x
  2. Step 2: Convert to fraction form
    429,345/630,888.75 = 630,888.75/x
  3. Step 3: Cross multiply
    429,345x = 630,888.75 × 630,888.75
  4. Step 4: Simplify right side
    429,345x = 398,020,614,876.56
  5. Step 5: Solve for x
    x = 398,020,614,876.56/429,345
  6. Step 6: Final answer
    x = 927,041.46

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.