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Finding the Fourth Proportional to 570,608.36, 787,429.92 and 315,954.08

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Solution

The fourth proportional to 570,608.36, 787,429.92 and 315,954.08 is: 436,011.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,608.36 : 787,429.92 = 315,954.08 : x
  2. Step 2: Convert to fraction form
    570,608.36/787,429.92 = 315,954.08/x
  3. Step 3: Cross multiply
    570,608.36x = 787,429.92 × 315,954.08
  4. Step 4: Simplify right side
    570,608.36x = 248,791,695,938.07
  5. Step 5: Solve for x
    x = 248,791,695,938.07/570,608.36
  6. Step 6: Final answer
    x = 436,011.31

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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.