Home / 880,384.20-1,320,576.30-820,897.80

Finding the Fourth Proportional to 880,384.20, 1,320,576.30 and 820,897.80

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Solution

The fourth proportional to 880,384.20, 1,320,576.30 and 820,897.80 is: 1,231,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,384.20 : 1,320,576.30 = 820,897.80 : x
  2. Step 2: Convert to fraction form
    880,384.20/1,320,576.30 = 820,897.80/x
  3. Step 3: Cross multiply
    880,384.20x = 1,320,576.30 × 820,897.80
  4. Step 4: Simplify right side
    880,384.20x = 1,084,058,179,402.14
  5. Step 5: Solve for x
    x = 1,084,058,179,402.14/880,384.20
  6. Step 6: Final answer
    x = 1,231,346.70

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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.