Home / 1,663,088.21-2,292,982.25-1,387,842.61

Finding the Fourth Proportional to 1,663,088.21, 2,292,982.25 and 1,387,842.61

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Solution

The fourth proportional to 1,663,088.21, 2,292,982.25 and 1,387,842.61 is: 1,913,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,088.21 : 2,292,982.25 = 1,387,842.61 : x
  2. Step 2: Convert to fraction form
    1,663,088.21/2,292,982.25 = 1,387,842.61/x
  3. Step 3: Cross multiply
    1,663,088.21x = 2,292,982.25 × 1,387,842.61
  4. Step 4: Simplify right side
    1,663,088.21x = 3,182,298,470,523.67
  5. Step 5: Solve for x
    x = 3,182,298,470,523.67/1,663,088.21
  6. Step 6: Final answer
    x = 1,913,487.48

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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.