Home / 991,667.06-1,487,500.47-654,628.75

Finding the Fourth Proportional to 991,667.06, 1,487,500.47 and 654,628.75

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Solution

The fourth proportional to 991,667.06, 1,487,500.47 and 654,628.75 is: 981,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,667.06 : 1,487,500.47 = 654,628.75 : x
  2. Step 2: Convert to fraction form
    991,667.06/1,487,500.47 = 654,628.75/x
  3. Step 3: Cross multiply
    991,667.06x = 1,487,500.47 × 654,628.75
  4. Step 4: Simplify right side
    991,667.06x = 973,760,562,589.87
  5. Step 5: Solve for x
    x = 973,760,562,589.87/991,667.06
  6. Step 6: Final answer
    x = 981,943.03

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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.