Home / 910,481.10-1,365,721.65-485,328.30

Finding the Fourth Proportional to 910,481.10, 1,365,721.65 and 485,328.30

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Solution

The fourth proportional to 910,481.10, 1,365,721.65 and 485,328.30 is: 727,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,481.10 : 1,365,721.65 = 485,328.30 : x
  2. Step 2: Convert to fraction form
    910,481.10/1,365,721.65 = 485,328.30/x
  3. Step 3: Cross multiply
    910,481.10x = 1,365,721.65 × 485,328.30
  4. Step 4: Simplify right side
    910,481.10x = 662,823,366,667.70
  5. Step 5: Solve for x
    x = 662,823,366,667.70/910,481.10
  6. Step 6: Final answer
    x = 727,992.45

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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.