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Finding the Fourth Proportional to 485,593.44, 670,064.88 and 294,653.28

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Solution

The fourth proportional to 485,593.44, 670,064.88 and 294,653.28 is: 406,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,593.44 : 670,064.88 = 294,653.28 : x
  2. Step 2: Convert to fraction form
    485,593.44/670,064.88 = 294,653.28/x
  3. Step 3: Cross multiply
    485,593.44x = 670,064.88 × 294,653.28
  4. Step 4: Simplify right side
    485,593.44x = 197,436,814,704.81
  5. Step 5: Solve for x
    x = 197,436,814,704.81/485,593.44
  6. Step 6: Final answer
    x = 406,588.72

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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.