Home / 837,147.60-1,155,231.84-455,174.70

Finding the Fourth Proportional to 837,147.60, 1,155,231.84 and 455,174.70

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Solution

The fourth proportional to 837,147.60, 1,155,231.84 and 455,174.70 is: 628,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,147.60 : 1,155,231.84 = 455,174.70 : x
  2. Step 2: Convert to fraction form
    837,147.60/1,155,231.84 = 455,174.70/x
  3. Step 3: Cross multiply
    837,147.60x = 1,155,231.84 × 455,174.70
  4. Step 4: Simplify right side
    837,147.60x = 525,832,306,202.45
  5. Step 5: Solve for x
    x = 525,832,306,202.45/837,147.60
  6. Step 6: Final answer
    x = 628,123.77

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1.5x scale

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.