Home / 1,273,756.49-1,909,902.09-761,932.88

Finding the Fourth Proportional to 1,273,756.49, 1,909,902.09 and 761,932.88

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Solution

The fourth proportional to 1,273,756.49, 1,909,902.09 and 761,932.88 is: 1,142,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,756.49 : 1,909,902.09 = 761,932.88 : x
  2. Step 2: Convert to fraction form
    1,273,756.49/1,909,902.09 = 761,932.88/x
  3. Step 3: Cross multiply
    1,273,756.49x = 1,909,902.09 × 761,932.88
  4. Step 4: Simplify right side
    1,273,756.49x = 1,455,217,196,135.72
  5. Step 5: Solve for x
    x = 1,455,217,196,135.72/1,273,756.49
  6. Step 6: Final answer
    x = 1,142,461.07

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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.