Home / 1,222,312.32-1,686,809.52-671,073.48

Finding the Fourth Proportional to 1,222,312.32, 1,686,809.52 and 671,073.48

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Solution

The fourth proportional to 1,222,312.32, 1,686,809.52 and 671,073.48 is: 926,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,312.32 : 1,686,809.52 = 671,073.48 : x
  2. Step 2: Convert to fraction form
    1,222,312.32/1,686,809.52 = 671,073.48/x
  3. Step 3: Cross multiply
    1,222,312.32x = 1,686,809.52 × 671,073.48
  4. Step 4: Simplify right side
    1,222,312.32x = 1,131,973,134,683.53
  5. Step 5: Solve for x
    x = 1,131,973,134,683.53/1,222,312.32
  6. Step 6: Final answer
    x = 926,091.57

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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.