Home / 421,720.58-581,973.72-230,734.73

Finding the Fourth Proportional to 421,720.58, 581,973.72 and 230,734.73

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Solution

The fourth proportional to 421,720.58, 581,973.72 and 230,734.73 is: 318,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,720.58 : 581,973.72 = 230,734.73 : x
  2. Step 2: Convert to fraction form
    421,720.58/581,973.72 = 230,734.73/x
  3. Step 3: Cross multiply
    421,720.58x = 581,973.72 × 230,734.73
  4. Step 4: Simplify right side
    421,720.58x = 134,281,549,151.30
  5. Step 5: Solve for x
    x = 134,281,549,151.30/421,720.58
  6. Step 6: Final answer
    x = 318,413.56

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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.