Home / 770,419.74-1,063,208.28-421,583.58

Finding the Fourth Proportional to 770,419.74, 1,063,208.28 and 421,583.58

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Solution

The fourth proportional to 770,419.74, 1,063,208.28 and 421,583.58 is: 581,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,419.74 : 1,063,208.28 = 421,583.58 : x
  2. Step 2: Convert to fraction form
    770,419.74/1,063,208.28 = 421,583.58/x
  3. Step 3: Cross multiply
    770,419.74x = 1,063,208.28 × 421,583.58
  4. Step 4: Simplify right side
    770,419.74x = 448,231,152,968.04
  5. Step 5: Solve for x
    x = 448,231,152,968.04/770,419.74
  6. Step 6: Final answer
    x = 581,801.23

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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.