Home / 985,853.55-1,479,042.32-311,946.83

Finding the Fourth Proportional to 985,853.55, 1,479,042.32 and 311,946.83

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Solution

The fourth proportional to 985,853.55, 1,479,042.32 and 311,946.83 is: 468,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,853.55 : 1,479,042.32 = 311,946.83 : x
  2. Step 2: Convert to fraction form
    985,853.55/1,479,042.32 = 311,946.83/x
  3. Step 3: Cross multiply
    985,853.55x = 1,479,042.32 × 311,946.83
  4. Step 4: Simplify right side
    985,853.55x = 461,382,554,204.90
  5. Step 5: Solve for x
    x = 461,382,554,204.90/985,853.55
  6. Step 6: Final answer
    x = 468,003.14

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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.