Home / 985,273.70-1,477,901.63-311,355.12

Finding the Fourth Proportional to 985,273.70, 1,477,901.63 and 311,355.12

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Solution

The fourth proportional to 985,273.70, 1,477,901.63 and 311,355.12 is: 467,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,273.70 : 1,477,901.63 = 311,355.12 : x
  2. Step 2: Convert to fraction form
    985,273.70/1,477,901.63 = 311,355.12/x
  3. Step 3: Cross multiply
    985,273.70x = 1,477,901.63 × 311,355.12
  4. Step 4: Simplify right side
    985,273.70x = 460,152,239,356.85
  5. Step 5: Solve for x
    x = 460,152,239,356.85/985,273.70
  6. Step 6: Final answer
    x = 467,029.86

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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.