Home / 743,936.76-1,026,611.28-421,676.64

Finding the Fourth Proportional to 743,936.76, 1,026,611.28 and 421,676.64

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Solution

The fourth proportional to 743,936.76, 1,026,611.28 and 421,676.64 is: 581,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,936.76 : 1,026,611.28 = 421,676.64 : x
  2. Step 2: Convert to fraction form
    743,936.76/1,026,611.28 = 421,676.64/x
  3. Step 3: Cross multiply
    743,936.76x = 1,026,611.28 × 421,676.64
  4. Step 4: Simplify right side
    743,936.76x = 432,897,995,136.50
  5. Step 5: Solve for x
    x = 432,897,995,136.50/743,936.76
  6. Step 6: Final answer
    x = 581,901.61

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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.