Home / 432,017.20-646,891.80-304,971.40

Finding the Fourth Proportional to 432,017.20, 646,891.80 and 304,971.40

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Solution

The fourth proportional to 432,017.20, 646,891.80 and 304,971.40 is: 456,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,017.20 : 646,891.80 = 304,971.40 : x
  2. Step 2: Convert to fraction form
    432,017.20/646,891.80 = 304,971.40/x
  3. Step 3: Cross multiply
    432,017.20x = 646,891.80 × 304,971.40
  4. Step 4: Simplify right side
    432,017.20x = 197,283,497,894.52
  5. Step 5: Solve for x
    x = 197,283,497,894.52/432,017.20
  6. Step 6: Final answer
    x = 456,656.58

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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.