Home / 1,210,610.90-1,670,519.40-745,390.88

Finding the Fourth Proportional to 1,210,610.90, 1,670,519.40 and 745,390.88

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Solution

The fourth proportional to 1,210,610.90, 1,670,519.40 and 745,390.88 is: 1,028,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,610.90 : 1,670,519.40 = 745,390.88 : x
  2. Step 2: Convert to fraction form
    1,210,610.90/1,670,519.40 = 745,390.88/x
  3. Step 3: Cross multiply
    1,210,610.90x = 1,670,519.40 × 745,390.88
  4. Step 4: Simplify right side
    1,210,610.90x = 1,245,189,925,623.07
  5. Step 5: Solve for x
    x = 1,245,189,925,623.07/1,210,610.90
  6. Step 6: Final answer
    x = 1,028,563.29

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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.