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Finding the Fourth Proportional to 660,148.94, 911,027.24 and 373,662.87

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Solution

The fourth proportional to 660,148.94, 911,027.24 and 373,662.87 is: 515,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,148.94 : 911,027.24 = 373,662.87 : x
  2. Step 2: Convert to fraction form
    660,148.94/911,027.24 = 373,662.87/x
  3. Step 3: Cross multiply
    660,148.94x = 911,027.24 × 373,662.87
  4. Step 4: Simplify right side
    660,148.94x = 340,417,051,278.26
  5. Step 5: Solve for x
    x = 340,417,051,278.26/660,148.94
  6. Step 6: Final answer
    x = 515,667.05

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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.