Home / 757,450.80-1,045,395.36-485,825.04

Finding the Fourth Proportional to 757,450.80, 1,045,395.36 and 485,825.04

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Solution

The fourth proportional to 757,450.80, 1,045,395.36 and 485,825.04 is: 670,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,450.80 : 1,045,395.36 = 485,825.04 : x
  2. Step 2: Convert to fraction form
    757,450.80/1,045,395.36 = 485,825.04/x
  3. Step 3: Cross multiply
    757,450.80x = 1,045,395.36 × 485,825.04
  4. Step 4: Simplify right side
    757,450.80x = 507,879,242,587.81
  5. Step 5: Solve for x
    x = 507,879,242,587.81/757,450.80
  6. Step 6: Final answer
    x = 670,511.20

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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.