Home / 880,045.90-1,320,057.70-280,999.46

Finding the Fourth Proportional to 880,045.90, 1,320,057.70 and 280,999.46

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Solution

The fourth proportional to 880,045.90, 1,320,057.70 and 280,999.46 is: 421,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,045.90 : 1,320,057.70 = 280,999.46 : x
  2. Step 2: Convert to fraction form
    880,045.90/1,320,057.70 = 280,999.46/x
  3. Step 3: Cross multiply
    880,045.90x = 1,320,057.70 × 280,999.46
  4. Step 4: Simplify right side
    880,045.90x = 370,935,500,868.84
  5. Step 5: Solve for x
    x = 370,935,500,868.84/880,045.90
  6. Step 6: Final answer
    x = 421,495.63

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Similar ratio
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1.5x scale

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.