Home / 778,755.64-1,168,142.74-305,663.80

Finding the Fourth Proportional to 778,755.64, 1,168,142.74 and 305,663.80

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Solution

The fourth proportional to 778,755.64, 1,168,142.74 and 305,663.80 is: 458,499.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,755.64 : 1,168,142.74 = 305,663.80 : x
  2. Step 2: Convert to fraction form
    778,755.64/1,168,142.74 = 305,663.80/x
  3. Step 3: Cross multiply
    778,755.64x = 1,168,142.74 × 305,663.80
  4. Step 4: Simplify right side
    778,755.64x = 357,058,948,850.81
  5. Step 5: Solve for x
    x = 357,058,948,850.81/778,755.64
  6. Step 6: Final answer
    x = 458,499.34

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1.5x scale

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.