Home / 920,132.40-1,380,788.64-446,559.60

Finding the Fourth Proportional to 920,132.40, 1,380,788.64 and 446,559.60

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Solution

The fourth proportional to 920,132.40, 1,380,788.64 and 446,559.60 is: 670,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,132.40 : 1,380,788.64 = 446,559.60 : x
  2. Step 2: Convert to fraction form
    920,132.40/1,380,788.64 = 446,559.60/x
  3. Step 3: Cross multiply
    920,132.40x = 1,380,788.64 × 446,559.60
  4. Step 4: Simplify right side
    920,132.40x = 616,604,422,762.94
  5. Step 5: Solve for x
    x = 616,604,422,762.94/920,132.40
  6. Step 6: Final answer
    x = 670,125.76

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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.