Home / 948,740-1,423,021.78-265,688.67

Finding the Fourth Proportional to 948,740, 1,423,021.78 and 265,688.67

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Solution

The fourth proportional to 948,740, 1,423,021.78 and 265,688.67 is: 398,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,740 : 1,423,021.78 = 265,688.67 : x
  2. Step 2: Convert to fraction form
    948,740/1,423,021.78 = 265,688.67/x
  3. Step 3: Cross multiply
    948,740x = 1,423,021.78 × 265,688.67
  4. Step 4: Simplify right side
    948,740x = 378,080,762,780.79
  5. Step 5: Solve for x
    x = 378,080,762,780.79/948,740
  6. Step 6: Final answer
    x = 398,508.30

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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.