Home / 1,210,735.76-1,670,826.60-666,873.52

Finding the Fourth Proportional to 1,210,735.76, 1,670,826.60 and 666,873.52

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Solution

The fourth proportional to 1,210,735.76, 1,670,826.60 and 666,873.52 is: 920,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,735.76 : 1,670,826.60 = 666,873.52 : x
  2. Step 2: Convert to fraction form
    1,210,735.76/1,670,826.60 = 666,873.52/x
  3. Step 3: Cross multiply
    1,210,735.76x = 1,670,826.60 × 666,873.52
  4. Step 4: Simplify right side
    1,210,735.76x = 1,114,230,016,051.63
  5. Step 5: Solve for x
    x = 1,114,230,016,051.63/1,210,735.76
  6. Step 6: Final answer
    x = 920,291.65

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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.