Home / 630,440.30-945,746.85-209,672.30

Finding the Fourth Proportional to 630,440.30, 945,746.85 and 209,672.30

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Solution

The fourth proportional to 630,440.30, 945,746.85 and 209,672.30 is: 314,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,440.30 : 945,746.85 = 209,672.30 : x
  2. Step 2: Convert to fraction form
    630,440.30/945,746.85 = 209,672.30/x
  3. Step 3: Cross multiply
    630,440.30x = 945,746.85 × 209,672.30
  4. Step 4: Simplify right side
    630,440.30x = 198,296,917,257.26
  5. Step 5: Solve for x
    x = 198,296,917,257.26/630,440.30
  6. Step 6: Final answer
    x = 314,537.18

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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.