Home / 1,398,215.19-2,096,981.98-387,310.89

Finding the Fourth Proportional to 1,398,215.19, 2,096,981.98 and 387,310.89

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Solution

The fourth proportional to 1,398,215.19, 2,096,981.98 and 387,310.89 is: 580,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,215.19 : 2,096,981.98 = 387,310.89 : x
  2. Step 2: Convert to fraction form
    1,398,215.19/2,096,981.98 = 387,310.89/x
  3. Step 3: Cross multiply
    1,398,215.19x = 2,096,981.98 × 387,310.89
  4. Step 4: Simplify right side
    1,398,215.19x = 812,183,956,987.76
  5. Step 5: Solve for x
    x = 812,183,956,987.76/1,398,215.19
  6. Step 6: Final answer
    x = 580,871.93

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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.