Home / 820,210.40-1,231,237.20-634,047.20

Finding the Fourth Proportional to 820,210.40, 1,231,237.20 and 634,047.20

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Solution

The fourth proportional to 820,210.40, 1,231,237.20 and 634,047.20 is: 951,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,210.40 : 1,231,237.20 = 634,047.20 : x
  2. Step 2: Convert to fraction form
    820,210.40/1,231,237.20 = 634,047.20/x
  3. Step 3: Cross multiply
    820,210.40x = 1,231,237.20 × 634,047.20
  4. Step 4: Simplify right side
    820,210.40x = 780,662,499,195.84
  5. Step 5: Solve for x
    x = 780,662,499,195.84/820,210.40
  6. Step 6: Final answer
    x = 951,783.22

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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.