Home / 432,045.20-646,933.80-304,999.40

Finding the Fourth Proportional to 432,045.20, 646,933.80 and 304,999.40

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Solution

The fourth proportional to 432,045.20, 646,933.80 and 304,999.40 is: 456,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,045.20 : 646,933.80 = 304,999.40 : x
  2. Step 2: Convert to fraction form
    432,045.20/646,933.80 = 304,999.40/x
  3. Step 3: Cross multiply
    432,045.20x = 646,933.80 × 304,999.40
  4. Step 4: Simplify right side
    432,045.20x = 197,314,420,839.72
  5. Step 5: Solve for x
    x = 197,314,420,839.72/432,045.20
  6. Step 6: Final answer
    x = 456,698.56

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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.