Home / 1,500,851.81-2,071,154.94-821,788.31

Finding the Fourth Proportional to 1,500,851.81, 2,071,154.94 and 821,788.31

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Solution

The fourth proportional to 1,500,851.81, 2,071,154.94 and 821,788.31 is: 1,134,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,851.81 : 2,071,154.94 = 821,788.31 : x
  2. Step 2: Convert to fraction form
    1,500,851.81/2,071,154.94 = 821,788.31/x
  3. Step 3: Cross multiply
    1,500,851.81x = 2,071,154.94 × 821,788.31
  4. Step 4: Simplify right side
    1,500,851.81x = 1,702,050,917,890.75
  5. Step 5: Solve for x
    x = 1,702,050,917,890.75/1,500,851.81
  6. Step 6: Final answer
    x = 1,134,056.61

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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.