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Finding the Fourth Proportional to 570,637.37, 787,469.85 and 315,983.09

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Solution

The fourth proportional to 570,637.37, 787,469.85 and 315,983.09 is: 436,051.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,637.37 : 787,469.85 = 315,983.09 : x
  2. Step 2: Convert to fraction form
    570,637.37/787,469.85 = 315,983.09/x
  3. Step 3: Cross multiply
    570,637.37x = 787,469.85 × 315,983.09
  4. Step 4: Simplify right side
    570,637.37x = 248,827,158,453.51
  5. Step 5: Solve for x
    x = 248,827,158,453.51/570,637.37
  6. Step 6: Final answer
    x = 436,051.28

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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.