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Finding the Fourth Proportional to 1,830,358.02, 2,743,904.07 and 931,296.90

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Solution

The fourth proportional to 1,830,358.02, 2,743,904.07 and 931,296.90 is: 1,396,114.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830,358.02 : 2,743,904.07 = 931,296.90 : x
  2. Step 2: Convert to fraction form
    1,830,358.02/2,743,904.07 = 931,296.90/x
  3. Step 3: Cross multiply
    1,830,358.02x = 2,743,904.07 × 931,296.90
  4. Step 4: Simplify right side
    1,830,358.02x = 2,555,389,354,288.38
  5. Step 5: Solve for x
    x = 2,555,389,354,288.38/1,830,358.02
  6. Step 6: Final answer
    x = 1,396,114.49

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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.