Home / 722,406.40-1,083,220.80-301,206.40

Finding the Fourth Proportional to 722,406.40, 1,083,220.80 and 301,206.40

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Solution

The fourth proportional to 722,406.40, 1,083,220.80 and 301,206.40 is: 451,647.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,406.40 : 1,083,220.80 = 301,206.40 : x
  2. Step 2: Convert to fraction form
    722,406.40/1,083,220.80 = 301,206.40/x
  3. Step 3: Cross multiply
    722,406.40x = 1,083,220.80 × 301,206.40
  4. Step 4: Simplify right side
    722,406.40x = 326,273,037,573.12
  5. Step 5: Solve for x
    x = 326,273,037,573.12/722,406.40
  6. Step 6: Final answer
    x = 451,647.49

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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.