Home / 1,550,364.18-2,139,021.72-905,319.06

Finding the Fourth Proportional to 1,550,364.18, 2,139,021.72 and 905,319.06

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Solution

The fourth proportional to 1,550,364.18, 2,139,021.72 and 905,319.06 is: 1,249,059.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,364.18 : 2,139,021.72 = 905,319.06 : x
  2. Step 2: Convert to fraction form
    1,550,364.18/2,139,021.72 = 905,319.06/x
  3. Step 3: Cross multiply
    1,550,364.18x = 2,139,021.72 × 905,319.06
  4. Step 4: Simplify right side
    1,550,364.18x = 1,936,497,132,869.98
  5. Step 5: Solve for x
    x = 1,936,497,132,869.98/1,550,364.18
  6. Step 6: Final answer
    x = 1,249,059.52

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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.