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Finding the Fourth Proportional to 624,829.77, 936,493.65 and 287,405.64

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Solution

The fourth proportional to 624,829.77, 936,493.65 and 287,405.64 is: 430,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,829.77 : 936,493.65 = 287,405.64 : x
  2. Step 2: Convert to fraction form
    624,829.77/936,493.65 = 287,405.64/x
  3. Step 3: Cross multiply
    624,829.77x = 936,493.65 × 287,405.64
  4. Step 4: Simplify right side
    624,829.77x = 269,153,556,834.19
  5. Step 5: Solve for x
    x = 269,153,556,834.19/624,829.77
  6. Step 6: Final answer
    x = 430,763.02

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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.