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Finding the Fourth Proportional to 624,587.21, 936,740.67 and 287,303.96

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Solution

The fourth proportional to 624,587.21, 936,740.67 and 287,303.96 is: 430,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,587.21 : 936,740.67 = 287,303.96 : x
  2. Step 2: Convert to fraction form
    624,587.21/936,740.67 = 287,303.96/x
  3. Step 3: Cross multiply
    624,587.21x = 936,740.67 × 287,303.96
  4. Step 4: Simplify right side
    624,587.21x = 269,129,299,300.35
  5. Step 5: Solve for x
    x = 269,129,299,300.35/624,587.21
  6. Step 6: Final answer
    x = 430,891.47

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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.