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Finding the Fourth Proportional to 1,790,424, 2,470,785.12 and 985,608

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Solution

The fourth proportional to 1,790,424, 2,470,785.12 and 985,608 is: 1,360,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,424 : 2,470,785.12 = 985,608 : x
  2. Step 2: Convert to fraction form
    1,790,424/2,470,785.12 = 985,608/x
  3. Step 3: Cross multiply
    1,790,424x = 2,470,785.12 × 985,608
  4. Step 4: Simplify right side
    1,790,424x = 2,435,225,580,552.96
  5. Step 5: Solve for x
    x = 2,435,225,580,552.96/1,790,424
  6. Step 6: Final answer
    x = 1,360,139.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.