Home / 839,979.30-1,259,968.95-761,247.30

Finding the Fourth Proportional to 839,979.30, 1,259,968.95 and 761,247.30

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Solution

The fourth proportional to 839,979.30, 1,259,968.95 and 761,247.30 is: 1,141,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,979.30 : 1,259,968.95 = 761,247.30 : x
  2. Step 2: Convert to fraction form
    839,979.30/1,259,968.95 = 761,247.30/x
  3. Step 3: Cross multiply
    839,979.30x = 1,259,968.95 × 761,247.30
  4. Step 4: Simplify right side
    839,979.30x = 959,147,961,271.34
  5. Step 5: Solve for x
    x = 959,147,961,271.34/839,979.30
  6. Step 6: Final answer
    x = 1,141,870.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.