Home / 1,421,613.34-1,961,823.57-809,765.87

Finding the Fourth Proportional to 1,421,613.34, 1,961,823.57 and 809,765.87

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Solution

The fourth proportional to 1,421,613.34, 1,961,823.57 and 809,765.87 is: 1,117,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,613.34 : 1,961,823.57 = 809,765.87 : x
  2. Step 2: Convert to fraction form
    1,421,613.34/1,961,823.57 = 809,765.87/x
  3. Step 3: Cross multiply
    1,421,613.34x = 1,961,823.57 × 809,765.87
  4. Step 4: Simplify right side
    1,421,613.34x = 1,588,617,767,495.28
  5. Step 5: Solve for x
    x = 1,588,617,767,495.28/1,421,613.34
  6. Step 6: Final answer
    x = 1,117,475.28

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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.