Home / 725,015.96-1,000,360.96-438,529.89

Finding the Fourth Proportional to 725,015.96, 1,000,360.96 and 438,529.89

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Solution

The fourth proportional to 725,015.96, 1,000,360.96 and 438,529.89 is: 605,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,015.96 : 1,000,360.96 = 438,529.89 : x
  2. Step 2: Convert to fraction form
    725,015.96/1,000,360.96 = 438,529.89/x
  3. Step 3: Cross multiply
    725,015.96x = 1,000,360.96 × 438,529.89
  4. Step 4: Simplify right side
    725,015.96x = 438,688,180,652.77
  5. Step 5: Solve for x
    x = 438,688,180,652.77/725,015.96
  6. Step 6: Final answer
    x = 605,073.83

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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.