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Finding the Fourth Proportional to 621,725.94, 858,013.38 and 367,071.66

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Solution

The fourth proportional to 621,725.94, 858,013.38 and 367,071.66 is: 506,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,725.94 : 858,013.38 = 367,071.66 : x
  2. Step 2: Convert to fraction form
    621,725.94/858,013.38 = 367,071.66/x
  3. Step 3: Cross multiply
    621,725.94x = 858,013.38 × 367,071.66
  4. Step 4: Simplify right side
    621,725.94x = 314,952,395,698.81
  5. Step 5: Solve for x
    x = 314,952,395,698.81/621,725.94
  6. Step 6: Final answer
    x = 506,577.54

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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.