Home / 985,384.90-1,477,950.27-311,534.65

Finding the Fourth Proportional to 985,384.90, 1,477,950.27 and 311,534.65

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Solution

The fourth proportional to 985,384.90, 1,477,950.27 and 311,534.65 is: 467,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,384.90 : 1,477,950.27 = 311,534.65 : x
  2. Step 2: Convert to fraction form
    985,384.90/1,477,950.27 = 311,534.65/x
  3. Step 3: Cross multiply
    985,384.90x = 1,477,950.27 × 311,534.65
  4. Step 4: Simplify right side
    985,384.90x = 460,432,720,081.86
  5. Step 5: Solve for x
    x = 460,432,720,081.86/985,384.90
  6. Step 6: Final answer
    x = 467,261.80

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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.