Home / 760,959.54-1,047,734.06-645,999.90

Finding the Fourth Proportional to 760,959.54, 1,047,734.06 and 645,999.90

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Solution

The fourth proportional to 760,959.54, 1,047,734.06 and 645,999.90 is: 889,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,959.54 : 1,047,734.06 = 645,999.90 : x
  2. Step 2: Convert to fraction form
    760,959.54/1,047,734.06 = 645,999.90/x
  3. Step 3: Cross multiply
    760,959.54x = 1,047,734.06 × 645,999.90
  4. Step 4: Simplify right side
    760,959.54x = 676,836,097,986.59
  5. Step 5: Solve for x
    x = 676,836,097,986.59/760,959.54
  6. Step 6: Final answer
    x = 889,450.83

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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.