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Finding the Fourth Proportional to 570,597.88, 787,415.43 and 315,943.60

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Solution

The fourth proportional to 570,597.88, 787,415.43 and 315,943.60 is: 435,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,597.88 : 787,415.43 = 315,943.60 : x
  2. Step 2: Convert to fraction form
    570,597.88/787,415.43 = 315,943.60/x
  3. Step 3: Cross multiply
    570,597.88x = 787,415.43 × 315,943.60
  4. Step 4: Simplify right side
    570,597.88x = 248,778,865,649.75
  5. Step 5: Solve for x
    x = 248,778,865,649.75/570,597.88
  6. Step 6: Final answer
    x = 435,996.83

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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.