Home / 1,221,383.15-1,831,188.99-821,030.93

Finding the Fourth Proportional to 1,221,383.15, 1,831,188.99 and 821,030.93

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Solution

The fourth proportional to 1,221,383.15, 1,831,188.99 and 821,030.93 is: 1,230,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,383.15 : 1,831,188.99 = 821,030.93 : x
  2. Step 2: Convert to fraction form
    1,221,383.15/1,831,188.99 = 821,030.93/x
  3. Step 3: Cross multiply
    1,221,383.15x = 1,831,188.99 × 821,030.93
  4. Step 4: Simplify right side
    1,221,383.15x = 1,503,462,799,465.46
  5. Step 5: Solve for x
    x = 1,503,462,799,465.46/1,221,383.15
  6. Step 6: Final answer
    x = 1,230,950.99

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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.