Home / 701,607.74-1,052,676.73-421,320.38

Finding the Fourth Proportional to 701,607.74, 1,052,676.73 and 421,320.38

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Solution

The fourth proportional to 701,607.74, 1,052,676.73 and 421,320.38 is: 632,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,607.74 : 1,052,676.73 = 421,320.38 : x
  2. Step 2: Convert to fraction form
    701,607.74/1,052,676.73 = 421,320.38/x
  3. Step 3: Cross multiply
    701,607.74x = 1,052,676.73 × 421,320.38
  4. Step 4: Simplify right side
    701,607.74x = 443,514,159,900.76
  5. Step 5: Solve for x
    x = 443,514,159,900.76/701,607.74
  6. Step 6: Final answer
    x = 632,139.78

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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.