Home / 820,100.70-1,230,669.45-483,140.70

Finding the Fourth Proportional to 820,100.70, 1,230,669.45 and 483,140.70

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Solution

The fourth proportional to 820,100.70, 1,230,669.45 and 483,140.70 is: 725,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,100.70 : 1,230,669.45 = 483,140.70 : x
  2. Step 2: Convert to fraction form
    820,100.70/1,230,669.45 = 483,140.70/x
  3. Step 3: Cross multiply
    820,100.70x = 1,230,669.45 × 483,140.70
  4. Step 4: Simplify right side
    820,100.70x = 594,586,499,541.62
  5. Step 5: Solve for x
    x = 594,586,499,541.62/820,100.70
  6. Step 6: Final answer
    x = 725,016.45

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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.