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Finding the Fourth Proportional to 522,053.44, 720,369.57 and 318,030.33

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Solution

The fourth proportional to 522,053.44, 720,369.57 and 318,030.33 is: 438,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,053.44 : 720,369.57 = 318,030.33 : x
  2. Step 2: Convert to fraction form
    522,053.44/720,369.57 = 318,030.33/x
  3. Step 3: Cross multiply
    522,053.44x = 720,369.57 × 318,030.33
  4. Step 4: Simplify right side
    522,053.44x = 229,099,372,069.06
  5. Step 5: Solve for x
    x = 229,099,372,069.06/522,053.44
  6. Step 6: Final answer
    x = 438,842.76

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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.