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Finding the Fourth Proportional to 570,304.12, 787,010.16 and 315,649.84

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Solution

The fourth proportional to 570,304.12, 787,010.16 and 315,649.84 is: 435,591.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,304.12 : 787,010.16 = 315,649.84 : x
  2. Step 2: Convert to fraction form
    570,304.12/787,010.16 = 315,649.84/x
  3. Step 3: Cross multiply
    570,304.12x = 787,010.16 × 315,649.84
  4. Step 4: Simplify right side
    570,304.12x = 248,419,631,082.37
  5. Step 5: Solve for x
    x = 248,419,631,082.37/570,304.12
  6. Step 6: Final answer
    x = 435,591.51

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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.