Home / 1,136,645.96-1,569,161.85-830,378.48

Finding the Fourth Proportional to 1,136,645.96, 1,569,161.85 and 830,378.48

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Solution

The fourth proportional to 1,136,645.96, 1,569,161.85 and 830,378.48 is: 1,146,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,645.96 : 1,569,161.85 = 830,378.48 : x
  2. Step 2: Convert to fraction form
    1,136,645.96/1,569,161.85 = 830,378.48/x
  3. Step 3: Cross multiply
    1,136,645.96x = 1,569,161.85 × 830,378.48
  4. Step 4: Simplify right side
    1,136,645.96x = 1,302,998,231,876.99
  5. Step 5: Solve for x
    x = 1,302,998,231,876.99/1,136,645.96
  6. Step 6: Final answer
    x = 1,146,353.64

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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.