Home / 820,334.80-1,230,502.20-730,133.20

Finding the Fourth Proportional to 820,334.80, 1,230,502.20 and 730,133.20

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Solution

The fourth proportional to 820,334.80, 1,230,502.20 and 730,133.20 is: 1,095,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,334.80 : 1,230,502.20 = 730,133.20 : x
  2. Step 2: Convert to fraction form
    820,334.80/1,230,502.20 = 730,133.20/x
  3. Step 3: Cross multiply
    820,334.80x = 1,230,502.20 × 730,133.20
  4. Step 4: Simplify right side
    820,334.80x = 898,430,508,893.04
  5. Step 5: Solve for x
    x = 898,430,508,893.04/820,334.80
  6. Step 6: Final answer
    x = 1,095,199.80

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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.