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Finding the Fourth Proportional to 544,749.70, 817,015.20 and 260,439.70

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Solution

The fourth proportional to 544,749.70, 817,015.20 and 260,439.70 is: 390,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,749.70 : 817,015.20 = 260,439.70 : x
  2. Step 2: Convert to fraction form
    544,749.70/817,015.20 = 260,439.70/x
  3. Step 3: Cross multiply
    544,749.70x = 817,015.20 × 260,439.70
  4. Step 4: Simplify right side
    544,749.70x = 212,783,193,583.44
  5. Step 5: Solve for x
    x = 212,783,193,583.44/544,749.70
  6. Step 6: Final answer
    x = 390,607.27

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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.