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Finding the Fourth Proportional to 570,274.70, 787,003.90 and 315,625.82

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Solution

The fourth proportional to 570,274.70, 787,003.90 and 315,625.82 is: 435,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,274.70 : 787,003.90 = 315,625.82 : x
  2. Step 2: Convert to fraction form
    570,274.70/787,003.90 = 315,625.82/x
  3. Step 3: Cross multiply
    570,274.70x = 787,003.90 × 315,625.82
  4. Step 4: Simplify right side
    570,274.70x = 248,398,746,556.61
  5. Step 5: Solve for x
    x = 248,398,746,556.61/570,274.70
  6. Step 6: Final answer
    x = 435,577.36

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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.