Home / 744,000.72-1,026,801.19-421,676.20

Finding the Fourth Proportional to 744,000.72, 1,026,801.19 and 421,676.20

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Solution

The fourth proportional to 744,000.72, 1,026,801.19 and 421,676.20 is: 581,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,000.72 : 1,026,801.19 = 421,676.20 : x
  2. Step 2: Convert to fraction form
    744,000.72/1,026,801.19 = 421,676.20/x
  3. Step 3: Cross multiply
    744,000.72x = 1,026,801.19 × 421,676.20
  4. Step 4: Simplify right side
    744,000.72x = 432,977,623,954.68
  5. Step 5: Solve for x
    x = 432,977,623,954.68/744,000.72
  6. Step 6: Final answer
    x = 581,958.61

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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.