Home / 1,291,101.40-1,935,269.70-581,008.60

Finding the Fourth Proportional to 1,291,101.40, 1,935,269.70 and 581,008.60

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Solution

The fourth proportional to 1,291,101.40, 1,935,269.70 and 581,008.60 is: 870,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,101.40 : 1,935,269.70 = 581,008.60 : x
  2. Step 2: Convert to fraction form
    1,291,101.40/1,935,269.70 = 581,008.60/x
  3. Step 3: Cross multiply
    1,291,101.40x = 1,935,269.70 × 581,008.60
  4. Step 4: Simplify right side
    1,291,101.40x = 1,124,408,339,019.42
  5. Step 5: Solve for x
    x = 1,124,408,339,019.42/1,291,101.40
  6. Step 6: Final answer
    x = 870,890.81

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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.