Home / 459,583.40-689,936.70-260,042.60

Finding the Fourth Proportional to 459,583.40, 689,936.70 and 260,042.60

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Solution

The fourth proportional to 459,583.40, 689,936.70 and 260,042.60 is: 390,381.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,583.40 : 689,936.70 = 260,042.60 : x
  2. Step 2: Convert to fraction form
    459,583.40/689,936.70 = 260,042.60/x
  3. Step 3: Cross multiply
    459,583.40x = 689,936.70 × 260,042.60
  4. Step 4: Simplify right side
    459,583.40x = 179,412,933,303.42
  5. Step 5: Solve for x
    x = 179,412,933,303.42/459,583.40
  6. Step 6: Final answer
    x = 390,381.67

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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.