Home / 642,244.16-886,285.86-355,758.24

Finding the Fourth Proportional to 642,244.16, 886,285.86 and 355,758.24

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Solution

The fourth proportional to 642,244.16, 886,285.86 and 355,758.24 is: 490,940.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,244.16 : 886,285.86 = 355,758.24 : x
  2. Step 2: Convert to fraction form
    642,244.16/886,285.86 = 355,758.24/x
  3. Step 3: Cross multiply
    642,244.16x = 886,285.86 × 355,758.24
  4. Step 4: Simplify right side
    642,244.16x = 315,303,497,690.49
  5. Step 5: Solve for x
    x = 315,303,497,690.49/642,244.16
  6. Step 6: Final answer
    x = 490,940.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.