Home / 1,642,664.64-2,266,853.14-917,522.88

Finding the Fourth Proportional to 1,642,664.64, 2,266,853.14 and 917,522.88

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Solution

The fourth proportional to 1,642,664.64, 2,266,853.14 and 917,522.88 is: 1,266,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,664.64 : 2,266,853.14 = 917,522.88 : x
  2. Step 2: Convert to fraction form
    1,642,664.64/2,266,853.14 = 917,522.88/x
  3. Step 3: Cross multiply
    1,642,664.64x = 2,266,853.14 × 917,522.88
  4. Step 4: Simplify right side
    1,642,664.64x = 2,079,889,621,549.84
  5. Step 5: Solve for x
    x = 2,079,889,621,549.84/1,642,664.64
  6. Step 6: Final answer
    x = 1,266,168.13

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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.