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Finding the Fourth Proportional to 907,530, 1,252,368.50 and 499,627.77

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Solution

The fourth proportional to 907,530, 1,252,368.50 and 499,627.77 is: 689,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,530 : 1,252,368.50 = 499,627.77 : x
  2. Step 2: Convert to fraction form
    907,530/1,252,368.50 = 499,627.77/x
  3. Step 3: Cross multiply
    907,530x = 1,252,368.50 × 499,627.77
  4. Step 4: Simplify right side
    907,530x = 625,718,080,873.25
  5. Step 5: Solve for x
    x = 625,718,080,873.25/907,530
  6. Step 6: Final answer
    x = 689,473.72

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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.