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Finding the Fourth Proportional to 606,625.70, 909,938.55 and 492,464.30

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Solution

The fourth proportional to 606,625.70, 909,938.55 and 492,464.30 is: 738,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,625.70 : 909,938.55 = 492,464.30 : x
  2. Step 2: Convert to fraction form
    606,625.70/909,938.55 = 492,464.30/x
  3. Step 3: Cross multiply
    606,625.70x = 909,938.55 × 492,464.30
  4. Step 4: Simplify right side
    606,625.70x = 448,112,251,068.77
  5. Step 5: Solve for x
    x = 448,112,251,068.77/606,625.70
  6. Step 6: Final answer
    x = 738,696.45

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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.