Home / 1,209,926.88-1,669,685.52-666,051.04

Finding the Fourth Proportional to 1,209,926.88, 1,669,685.52 and 666,051.04

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Solution

The fourth proportional to 1,209,926.88, 1,669,685.52 and 666,051.04 is: 919,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,926.88 : 1,669,685.52 = 666,051.04 : x
  2. Step 2: Convert to fraction form
    1,209,926.88/1,669,685.52 = 666,051.04/x
  3. Step 3: Cross multiply
    1,209,926.88x = 1,669,685.52 × 666,051.04
  4. Step 4: Simplify right side
    1,209,926.88x = 1,112,095,777,068.94
  5. Step 5: Solve for x
    x = 1,112,095,777,068.94/1,209,926.88
  6. Step 6: Final answer
    x = 919,142.96

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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.