Home / 1,245,731.20-1,867,430.40-975,709.60

Finding the Fourth Proportional to 1,245,731.20, 1,867,430.40 and 975,709.60

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Solution

The fourth proportional to 1,245,731.20, 1,867,430.40 and 975,709.60 is: 1,462,650.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,731.20 : 1,867,430.40 = 975,709.60 : x
  2. Step 2: Convert to fraction form
    1,245,731.20/1,867,430.40 = 975,709.60/x
  3. Step 3: Cross multiply
    1,245,731.20x = 1,867,430.40 × 975,709.60
  4. Step 4: Simplify right side
    1,245,731.20x = 1,822,069,768,611.84
  5. Step 5: Solve for x
    x = 1,822,069,768,611.84/1,245,731.20
  6. Step 6: Final answer
    x = 1,462,650.83

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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.