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Finding the Fourth Proportional to 570,004.20, 854,574.30 and 289,722.60

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Solution

The fourth proportional to 570,004.20, 854,574.30 and 289,722.60 is: 434,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,004.20 : 854,574.30 = 289,722.60 : x
  2. Step 2: Convert to fraction form
    570,004.20/854,574.30 = 289,722.60/x
  3. Step 3: Cross multiply
    570,004.20x = 854,574.30 × 289,722.60
  4. Step 4: Simplify right side
    570,004.20x = 247,589,488,089.18
  5. Step 5: Solve for x
    x = 247,589,488,089.18/570,004.20
  6. Step 6: Final answer
    x = 434,364.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.