Home / 991,668.19-1,487,502.15-654,629.87

Finding the Fourth Proportional to 991,668.19, 1,487,502.15 and 654,629.87

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Solution

The fourth proportional to 991,668.19, 1,487,502.15 and 654,629.87 is: 981,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,668.19 : 1,487,502.15 = 654,629.87 : x
  2. Step 2: Convert to fraction form
    991,668.19/1,487,502.15 = 654,629.87/x
  3. Step 3: Cross multiply
    991,668.19x = 1,487,502.15 × 654,629.87
  4. Step 4: Simplify right side
    991,668.19x = 973,763,339,079.22
  5. Step 5: Solve for x
    x = 973,763,339,079.22/991,668.19
  6. Step 6: Final answer
    x = 981,944.72

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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.