Home / 1,245,485.86-1,861,404.62-909,234.58

Finding the Fourth Proportional to 1,245,485.86, 1,861,404.62 and 909,234.58

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Solution

The fourth proportional to 1,245,485.86, 1,861,404.62 and 909,234.58 is: 1,358,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,485.86 : 1,861,404.62 = 909,234.58 : x
  2. Step 2: Convert to fraction form
    1,245,485.86/1,861,404.62 = 909,234.58/x
  3. Step 3: Cross multiply
    1,245,485.86x = 1,861,404.62 × 909,234.58
  4. Step 4: Simplify right side
    1,245,485.86x = 1,692,453,447,875.76
  5. Step 5: Solve for x
    x = 1,692,453,447,875.76/1,245,485.86
  6. Step 6: Final answer
    x = 1,358,870.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.