Home / 856,731.60-1,284,708.60-324,075.60

Finding the Fourth Proportional to 856,731.60, 1,284,708.60 and 324,075.60

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Solution

The fourth proportional to 856,731.60, 1,284,708.60 and 324,075.60 is: 485,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,731.60 : 1,284,708.60 = 324,075.60 : x
  2. Step 2: Convert to fraction form
    856,731.60/1,284,708.60 = 324,075.60/x
  3. Step 3: Cross multiply
    856,731.60x = 1,284,708.60 × 324,075.60
  4. Step 4: Simplify right side
    856,731.60x = 416,342,710,370.16
  5. Step 5: Solve for x
    x = 416,342,710,370.16/856,731.60
  6. Step 6: Final answer
    x = 485,966.33

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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.