Home / 786,256.96-1,085,073.60-442,201.36

Finding the Fourth Proportional to 786,256.96, 1,085,073.60 and 442,201.36

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Solution

The fourth proportional to 786,256.96, 1,085,073.60 and 442,201.36 is: 610,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,256.96 : 1,085,073.60 = 442,201.36 : x
  2. Step 2: Convert to fraction form
    786,256.96/1,085,073.60 = 442,201.36/x
  3. Step 3: Cross multiply
    786,256.96x = 1,085,073.60 × 442,201.36
  4. Step 4: Simplify right side
    786,256.96x = 479,821,021,620.10
  5. Step 5: Solve for x
    x = 479,821,021,620.10/786,256.96
  6. Step 6: Final answer
    x = 610,259.81

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1.5x scale

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.