Home / 1,052,650.80-1,579,063.68-421,220.16

Finding the Fourth Proportional to 1,052,650.80, 1,579,063.68 and 421,220.16

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Solution

The fourth proportional to 1,052,650.80, 1,579,063.68 and 421,220.16 is: 631,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,650.80 : 1,579,063.68 = 421,220.16 : x
  2. Step 2: Convert to fraction form
    1,052,650.80/1,579,063.68 = 421,220.16/x
  3. Step 3: Cross multiply
    1,052,650.80x = 1,579,063.68 × 421,220.16
  4. Step 4: Simplify right side
    1,052,650.80x = 665,133,455,939.79
  5. Step 5: Solve for x
    x = 665,133,455,939.79/1,052,650.80
  6. Step 6: Final answer
    x = 631,865.25

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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.