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Finding the Fourth Proportional to 624,576.56, 936,724.68 and 287,293.28

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Solution

The fourth proportional to 624,576.56, 936,724.68 and 287,293.28 is: 430,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,576.56 : 936,724.68 = 287,293.28 : x
  2. Step 2: Convert to fraction form
    624,576.56/936,724.68 = 287,293.28/x
  3. Step 3: Cross multiply
    624,576.56x = 936,724.68 × 287,293.28
  4. Step 4: Simplify right side
    624,576.56x = 269,114,701,090.53
  5. Step 5: Solve for x
    x = 269,114,701,090.53/624,576.56
  6. Step 6: Final answer
    x = 430,875.45

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1.5x scale

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.