Home / 1,210,610.95-1,670,519.48-745,390.95

Finding the Fourth Proportional to 1,210,610.95, 1,670,519.48 and 745,390.95

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Solution

The fourth proportional to 1,210,610.95, 1,670,519.48 and 745,390.95 is: 1,028,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,610.95 : 1,670,519.48 = 745,390.95 : x
  2. Step 2: Convert to fraction form
    1,210,610.95/1,670,519.48 = 745,390.95/x
  3. Step 3: Cross multiply
    1,210,610.95x = 1,670,519.48 × 745,390.95
  4. Step 4: Simplify right side
    1,210,610.95x = 1,245,190,102,190.71
  5. Step 5: Solve for x
    x = 1,245,190,102,190.71/1,210,610.95
  6. Step 6: Final answer
    x = 1,028,563.39

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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.