Home / 432,038.20-646,923.30-304,992.40

Finding the Fourth Proportional to 432,038.20, 646,923.30 and 304,992.40

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Solution

The fourth proportional to 432,038.20, 646,923.30 and 304,992.40 is: 456,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,038.20 : 646,923.30 = 304,992.40 : x
  2. Step 2: Convert to fraction form
    432,038.20/646,923.30 = 304,992.40/x
  3. Step 3: Cross multiply
    432,038.20x = 646,923.30 × 304,992.40
  4. Step 4: Simplify right side
    432,038.20x = 197,306,689,882.92
  5. Step 5: Solve for x
    x = 197,306,689,882.92/432,038.20
  6. Step 6: Final answer
    x = 456,688.07

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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.