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Finding the Fourth Proportional to 660,046.63, 910,708.23 and 373,566.72

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Solution

The fourth proportional to 660,046.63, 910,708.23 and 373,566.72 is: 515,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,046.63 : 910,708.23 = 373,566.72 : x
  2. Step 2: Convert to fraction form
    660,046.63/910,708.23 = 373,566.72/x
  3. Step 3: Cross multiply
    660,046.63x = 910,708.23 × 373,566.72
  4. Step 4: Simplify right side
    660,046.63x = 340,210,281,804.56
  5. Step 5: Solve for x
    x = 340,210,281,804.56/660,046.63
  6. Step 6: Final answer
    x = 515,433.71

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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.