Home / 985,271.45-1,477,898.26-311,352.86

Finding the Fourth Proportional to 985,271.45, 1,477,898.26 and 311,352.86

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Solution

The fourth proportional to 985,271.45, 1,477,898.26 and 311,352.86 is: 467,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,271.45 : 1,477,898.26 = 311,352.86 : x
  2. Step 2: Convert to fraction form
    985,271.45/1,477,898.26 = 311,352.86/x
  3. Step 3: Cross multiply
    985,271.45x = 1,477,898.26 × 311,352.86
  4. Step 4: Simplify right side
    985,271.45x = 460,147,852,956.39
  5. Step 5: Solve for x
    x = 460,147,852,956.39/985,271.45
  6. Step 6: Final answer
    x = 467,026.48

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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.