Home / 985,021.60-1,477,760.64-311,169.76

Finding the Fourth Proportional to 985,021.60, 1,477,760.64 and 311,169.76

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Solution

The fourth proportional to 985,021.60, 1,477,760.64 and 311,169.76 is: 466,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,021.60 : 1,477,760.64 = 311,169.76 : x
  2. Step 2: Convert to fraction form
    985,021.60/1,477,760.64 = 311,169.76/x
  3. Step 3: Cross multiply
    985,021.60x = 1,477,760.64 × 311,169.76
  4. Step 4: Simplify right side
    985,021.60x = 459,834,423,686.25
  5. Step 5: Solve for x
    x = 459,834,423,686.25/985,021.60
  6. Step 6: Final answer
    x = 466,826.74

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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.