Home / 630,348.04-945,530.30-209,623.88

Finding the Fourth Proportional to 630,348.04, 945,530.30 and 209,623.88

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Solution

The fourth proportional to 630,348.04, 945,530.30 and 209,623.88 is: 314,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,348.04 : 945,530.30 = 209,623.88 : x
  2. Step 2: Convert to fraction form
    630,348.04/945,530.30 = 209,623.88/x
  3. Step 3: Cross multiply
    630,348.04x = 945,530.30 × 209,623.88
  4. Step 4: Simplify right side
    630,348.04x = 198,205,730,143.56
  5. Step 5: Solve for x
    x = 198,205,730,143.56/630,348.04
  6. Step 6: Final answer
    x = 314,438.56

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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.