Home / 1,210,679.76-1,670,856.05-904,224.06

Finding the Fourth Proportional to 1,210,679.76, 1,670,856.05 and 904,224.06

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Solution

The fourth proportional to 1,210,679.76, 1,670,856.05 and 904,224.06 is: 1,247,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,679.76 : 1,670,856.05 = 904,224.06 : x
  2. Step 2: Convert to fraction form
    1,210,679.76/1,670,856.05 = 904,224.06/x
  3. Step 3: Cross multiply
    1,210,679.76x = 1,670,856.05 × 904,224.06
  4. Step 4: Simplify right side
    1,210,679.76x = 1,510,828,243,467.12
  5. Step 5: Solve for x
    x = 1,510,828,243,467.12/1,210,679.76
  6. Step 6: Final answer
    x = 1,247,917.32

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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.