Home / 884,396.40-1,326,783.48-285,391.60

Finding the Fourth Proportional to 884,396.40, 1,326,783.48 and 285,391.60

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Solution

The fourth proportional to 884,396.40, 1,326,783.48 and 285,391.60 is: 428,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,396.40 : 1,326,783.48 = 285,391.60 : x
  2. Step 2: Convert to fraction form
    884,396.40/1,326,783.48 = 285,391.60/x
  3. Step 3: Cross multiply
    884,396.40x = 1,326,783.48 × 285,391.60
  4. Step 4: Simplify right side
    884,396.40x = 378,652,860,210.77
  5. Step 5: Solve for x
    x = 378,652,860,210.77/884,396.40
  6. Step 6: Final answer
    x = 428,148.35

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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.