Home / 837,372.60-1,155,834.37-665,595.36

Finding the Fourth Proportional to 837,372.60, 1,155,834.37 and 665,595.36

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Solution

The fourth proportional to 837,372.60, 1,155,834.37 and 665,595.36 is: 918,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,372.60 : 1,155,834.37 = 665,595.36 : x
  2. Step 2: Convert to fraction form
    837,372.60/1,155,834.37 = 665,595.36/x
  3. Step 3: Cross multiply
    837,372.60x = 1,155,834.37 × 665,595.36
  4. Step 4: Simplify right side
    837,372.60x = 769,317,990,272.55
  5. Step 5: Solve for x
    x = 769,317,990,272.55/837,372.60
  6. Step 6: Final answer
    x = 918,728.40

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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.