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Finding the Fourth Proportional to 570,596.88, 787,414.05 and 315,942.60

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Solution

The fourth proportional to 570,596.88, 787,414.05 and 315,942.60 is: 435,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,596.88 : 787,414.05 = 315,942.60 : x
  2. Step 2: Convert to fraction form
    570,596.88/787,414.05 = 315,942.60/x
  3. Step 3: Cross multiply
    570,596.88x = 787,414.05 × 315,942.60
  4. Step 4: Simplify right side
    570,596.88x = 248,777,642,233.53
  5. Step 5: Solve for x
    x = 248,777,642,233.53/570,596.88
  6. Step 6: Final answer
    x = 435,995.45

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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.