Home / 803,021.45-1,108,175.04-440,447.90

Finding the Fourth Proportional to 803,021.45, 1,108,175.04 and 440,447.90

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Solution

The fourth proportional to 803,021.45, 1,108,175.04 and 440,447.90 is: 607,821.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,021.45 : 1,108,175.04 = 440,447.90 : x
  2. Step 2: Convert to fraction form
    803,021.45/1,108,175.04 = 440,447.90/x
  3. Step 3: Cross multiply
    803,021.45x = 1,108,175.04 × 440,447.90
  4. Step 4: Simplify right side
    803,021.45x = 488,093,363,659.54
  5. Step 5: Solve for x
    x = 488,093,363,659.54/803,021.45
  6. Step 6: Final answer
    x = 607,821.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.