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Finding the Fourth Proportional to 613,417.88, 846,346.38 and 395,534.36

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Solution

The fourth proportional to 613,417.88, 846,346.38 and 395,534.36 is: 545,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,417.88 : 846,346.38 = 395,534.36 : x
  2. Step 2: Convert to fraction form
    613,417.88/846,346.38 = 395,534.36/x
  3. Step 3: Cross multiply
    613,417.88x = 846,346.38 × 395,534.36
  4. Step 4: Simplify right side
    613,417.88x = 334,759,073,751.62
  5. Step 5: Solve for x
    x = 334,759,073,751.62/613,417.88
  6. Step 6: Final answer
    x = 545,727.61

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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.