Home / 1,401,642.36-2,099,409.81-921,327.95

Finding the Fourth Proportional to 1,401,642.36, 2,099,409.81 and 921,327.95

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Solution

The fourth proportional to 1,401,642.36, 2,099,409.81 and 921,327.95 is: 1,379,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,642.36 : 2,099,409.81 = 921,327.95 : x
  2. Step 2: Convert to fraction form
    1,401,642.36/2,099,409.81 = 921,327.95/x
  3. Step 3: Cross multiply
    1,401,642.36x = 2,099,409.81 × 921,327.95
  4. Step 4: Simplify right side
    1,401,642.36x = 1,934,244,925,960.14
  5. Step 5: Solve for x
    x = 1,934,244,925,960.14/1,401,642.36
  6. Step 6: Final answer
    x = 1,379,984.64

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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.