Home / 916,072.60-1,373,452.80-383,319.40

Finding the Fourth Proportional to 916,072.60, 1,373,452.80 and 383,319.40

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Solution

The fourth proportional to 916,072.60, 1,373,452.80 and 383,319.40 is: 574,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,072.60 : 1,373,452.80 = 383,319.40 : x
  2. Step 2: Convert to fraction form
    916,072.60/1,373,452.80 = 383,319.40/x
  3. Step 3: Cross multiply
    916,072.60x = 1,373,452.80 × 383,319.40
  4. Step 4: Simplify right side
    916,072.60x = 526,471,103,224.32
  5. Step 5: Solve for x
    x = 526,471,103,224.32/916,072.60
  6. Step 6: Final answer
    x = 574,704.56

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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.