Home / 727,484.77-1,003,929.26-421,738.39

Finding the Fourth Proportional to 727,484.77, 1,003,929.26 and 421,738.39

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Solution

The fourth proportional to 727,484.77, 1,003,929.26 and 421,738.39 is: 581,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,484.77 : 1,003,929.26 = 421,738.39 : x
  2. Step 2: Convert to fraction form
    727,484.77/1,003,929.26 = 421,738.39/x
  3. Step 3: Cross multiply
    727,484.77x = 1,003,929.26 × 421,738.39
  4. Step 4: Simplify right side
    727,484.77x = 423,395,509,786.29
  5. Step 5: Solve for x
    x = 423,395,509,786.29/727,484.77
  6. Step 6: Final answer
    x = 581,999.14

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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.