Home / 1,488,768.60-2,232,504.90-689,784.60

Finding the Fourth Proportional to 1,488,768.60, 2,232,504.90 and 689,784.60

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Solution

The fourth proportional to 1,488,768.60, 2,232,504.90 and 689,784.60 is: 1,034,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,768.60 : 2,232,504.90 = 689,784.60 : x
  2. Step 2: Convert to fraction form
    1,488,768.60/2,232,504.90 = 689,784.60/x
  3. Step 3: Cross multiply
    1,488,768.60x = 2,232,504.90 × 689,784.60
  4. Step 4: Simplify right side
    1,488,768.60x = 1,539,947,499,444.54
  5. Step 5: Solve for x
    x = 1,539,947,499,444.54/1,488,768.60
  6. Step 6: Final answer
    x = 1,034,376.67

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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.