Home / 856,923.90-1,285,497.64-317,106.70

Finding the Fourth Proportional to 856,923.90, 1,285,497.64 and 317,106.70

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Solution

The fourth proportional to 856,923.90, 1,285,497.64 and 317,106.70 is: 475,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,923.90 : 1,285,497.64 = 317,106.70 : x
  2. Step 2: Convert to fraction form
    856,923.90/1,285,497.64 = 317,106.70/x
  3. Step 3: Cross multiply
    856,923.90x = 1,285,497.64 × 317,106.70
  4. Step 4: Simplify right side
    856,923.90x = 407,639,914,478.19
  5. Step 5: Solve for x
    x = 407,639,914,478.19/856,923.90
  6. Step 6: Final answer
    x = 475,701.42

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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.