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Finding the Fourth Proportional to 1,869,204.40, 2,799,659.40 and 746,695.60

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Solution

The fourth proportional to 1,869,204.40, 2,799,659.40 and 746,695.60 is: 1,118,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,204.40 : 2,799,659.40 = 746,695.60 : x
  2. Step 2: Convert to fraction form
    1,869,204.40/2,799,659.40 = 746,695.60/x
  3. Step 3: Cross multiply
    1,869,204.40x = 2,799,659.40 × 746,695.60
  4. Step 4: Simplify right side
    1,869,204.40x = 2,090,493,355,478.64
  5. Step 5: Solve for x
    x = 2,090,493,355,478.64/1,869,204.40
  6. Step 6: Final answer
    x = 1,118,386.71

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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.