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Finding the Fourth Proportional to 618,080.04, 853,004.70 and 346,143.60

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Solution

The fourth proportional to 618,080.04, 853,004.70 and 346,143.60 is: 477,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,080.04 : 853,004.70 = 346,143.60 : x
  2. Step 2: Convert to fraction form
    618,080.04/853,004.70 = 346,143.60/x
  3. Step 3: Cross multiply
    618,080.04x = 853,004.70 × 346,143.60
  4. Step 4: Simplify right side
    618,080.04x = 295,262,117,674.92
  5. Step 5: Solve for x
    x = 295,262,117,674.92/618,080.04
  6. Step 6: Final answer
    x = 477,708.55

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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.