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Finding the Fourth Proportional to 570,783.80, 787,687.45 and 344,385.56

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Solution

The fourth proportional to 570,783.80, 787,687.45 and 344,385.56 is: 475,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,783.80 : 787,687.45 = 344,385.56 : x
  2. Step 2: Convert to fraction form
    570,783.80/787,687.45 = 344,385.56/x
  3. Step 3: Cross multiply
    570,783.80x = 787,687.45 × 344,385.56
  4. Step 4: Simplify right side
    570,783.80x = 271,268,184,681.48
  5. Step 5: Solve for x
    x = 271,268,184,681.48/570,783.80
  6. Step 6: Final answer
    x = 475,255.58

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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.