Home / 1,331,105.04-1,837,301.76-787,429.80

Finding the Fourth Proportional to 1,331,105.04, 1,837,301.76 and 787,429.80

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Solution

The fourth proportional to 1,331,105.04, 1,837,301.76 and 787,429.80 is: 1,086,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,105.04 : 1,837,301.76 = 787,429.80 : x
  2. Step 2: Convert to fraction form
    1,331,105.04/1,837,301.76 = 787,429.80/x
  3. Step 3: Cross multiply
    1,331,105.04x = 1,837,301.76 × 787,429.80
  4. Step 4: Simplify right side
    1,331,105.04x = 1,446,746,157,416.45
  5. Step 5: Solve for x
    x = 1,446,746,157,416.45/1,331,105.04
  6. Step 6: Final answer
    x = 1,086,876.03

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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.