Home / 856,802.99-1,285,384.91-324,312.23

Finding the Fourth Proportional to 856,802.99, 1,285,384.91 and 324,312.23

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Solution

The fourth proportional to 856,802.99, 1,285,384.91 and 324,312.23 is: 486,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,802.99 : 1,285,384.91 = 324,312.23 : x
  2. Step 2: Convert to fraction form
    856,802.99/1,285,384.91 = 324,312.23/x
  3. Step 3: Cross multiply
    856,802.99x = 1,285,384.91 × 324,312.23
  4. Step 4: Simplify right side
    856,802.99x = 416,866,046,570.45
  5. Step 5: Solve for x
    x = 416,866,046,570.45/856,802.99
  6. Step 6: Final answer
    x = 486,536.64

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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.