Home / 985,383.90-1,477,948.77-311,533.65

Finding the Fourth Proportional to 985,383.90, 1,477,948.77 and 311,533.65

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Solution

The fourth proportional to 985,383.90, 1,477,948.77 and 311,533.65 is: 467,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,383.90 : 1,477,948.77 = 311,533.65 : x
  2. Step 2: Convert to fraction form
    985,383.90/1,477,948.77 = 311,533.65/x
  3. Step 3: Cross multiply
    985,383.90x = 1,477,948.77 × 311,533.65
  4. Step 4: Simplify right side
    985,383.90x = 460,430,774,831.11
  5. Step 5: Solve for x
    x = 460,430,774,831.11/985,383.90
  6. Step 6: Final answer
    x = 467,260.30

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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.