Home / 1,207,382.20-1,808,999.70-637,919.80

Finding the Fourth Proportional to 1,207,382.20, 1,808,999.70 and 637,919.80

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Solution

The fourth proportional to 1,207,382.20, 1,808,999.70 and 637,919.80 is: 955,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,382.20 : 1,808,999.70 = 637,919.80 : x
  2. Step 2: Convert to fraction form
    1,207,382.20/1,808,999.70 = 637,919.80/x
  3. Step 3: Cross multiply
    1,207,382.20x = 1,808,999.70 × 637,919.80
  4. Step 4: Simplify right side
    1,207,382.20x = 1,153,996,726,824.06
  5. Step 5: Solve for x
    x = 1,153,996,726,824.06/1,207,382.20
  6. Step 6: Final answer
    x = 955,784.11

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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.