Home / 880,041.90-1,320,051.70-280,995.46

Finding the Fourth Proportional to 880,041.90, 1,320,051.70 and 280,995.46

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Solution

The fourth proportional to 880,041.90, 1,320,051.70 and 280,995.46 is: 421,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,041.90 : 1,320,051.70 = 280,995.46 : x
  2. Step 2: Convert to fraction form
    880,041.90/1,320,051.70 = 280,995.46/x
  3. Step 3: Cross multiply
    880,041.90x = 1,320,051.70 × 280,995.46
  4. Step 4: Simplify right side
    880,041.90x = 370,928,534,665.28
  5. Step 5: Solve for x
    x = 370,928,534,665.28/880,041.90
  6. Step 6: Final answer
    x = 421,489.63

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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.