Home / 1,372,374.05-1,891,511.69-912,667.01

Finding the Fourth Proportional to 1,372,374.05, 1,891,511.69 and 912,667.01

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Solution

The fourth proportional to 1,372,374.05, 1,891,511.69 and 912,667.01 is: 1,257,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,374.05 : 1,891,511.69 = 912,667.01 : x
  2. Step 2: Convert to fraction form
    1,372,374.05/1,891,511.69 = 912,667.01/x
  3. Step 3: Cross multiply
    1,372,374.05x = 1,891,511.69 × 912,667.01
  4. Step 4: Simplify right side
    1,372,374.05x = 1,726,320,311,316.46
  5. Step 5: Solve for x
    x = 1,726,320,311,316.46/1,372,374.05
  6. Step 6: Final answer
    x = 1,257,908.02

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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.