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Finding the Fourth Proportional to 618,303.22, 853,243.58 and 346,382.58

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Solution

The fourth proportional to 618,303.22, 853,243.58 and 346,382.58 is: 477,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,303.22 : 853,243.58 = 346,382.58 : x
  2. Step 2: Convert to fraction form
    618,303.22/853,243.58 = 346,382.58/x
  3. Step 3: Cross multiply
    618,303.22x = 853,243.58 × 346,382.58
  4. Step 4: Simplify right side
    618,303.22x = 295,548,712,608.84
  5. Step 5: Solve for x
    x = 295,548,712,608.84/618,303.22
  6. Step 6: Final answer
    x = 477,999.63

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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.