Home / 1,007,821.06-1,390,792.80-555,112.06

Finding the Fourth Proportional to 1,007,821.06, 1,390,792.80 and 555,112.06

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Solution

The fourth proportional to 1,007,821.06, 1,390,792.80 and 555,112.06 is: 766,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,821.06 : 1,390,792.80 = 555,112.06 : x
  2. Step 2: Convert to fraction form
    1,007,821.06/1,390,792.80 = 555,112.06/x
  3. Step 3: Cross multiply
    1,007,821.06x = 1,390,792.80 × 555,112.06
  4. Step 4: Simplify right side
    1,007,821.06x = 772,045,856,241.17
  5. Step 5: Solve for x
    x = 772,045,856,241.17/1,007,821.06
  6. Step 6: Final answer
    x = 766,054.50

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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.