Home / 1,231,319.80-1,843,869.30-808,305.40

Finding the Fourth Proportional to 1,231,319.80, 1,843,869.30 and 808,305.40

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Solution

The fourth proportional to 1,231,319.80, 1,843,869.30 and 808,305.40 is: 1,210,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,319.80 : 1,843,869.30 = 808,305.40 : x
  2. Step 2: Convert to fraction form
    1,231,319.80/1,843,869.30 = 808,305.40/x
  3. Step 3: Cross multiply
    1,231,319.80x = 1,843,869.30 × 808,305.40
  4. Step 4: Simplify right side
    1,231,319.80x = 1,490,409,512,084.22
  5. Step 5: Solve for x
    x = 1,490,409,512,084.22/1,231,319.80
  6. Step 6: Final answer
    x = 1,210,416.26

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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.