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Finding the Fourth Proportional to 624,980.71, 937,515.21 and 309,352.87

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Solution

The fourth proportional to 624,980.71, 937,515.21 and 309,352.87 is: 464,051.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,980.71 : 937,515.21 = 309,352.87 : x
  2. Step 2: Convert to fraction form
    624,980.71/937,515.21 = 309,352.87/x
  3. Step 3: Cross multiply
    624,980.71x = 937,515.21 × 309,352.87
  4. Step 4: Simplify right side
    624,980.71x = 290,023,020,882.15
  5. Step 5: Solve for x
    x = 290,023,020,882.15/624,980.71
  6. Step 6: Final answer
    x = 464,051.16

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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.