Home / 837,055.20-1,155,123.48-455,078.64

Finding the Fourth Proportional to 837,055.20, 1,155,123.48 and 455,078.64

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Solution

The fourth proportional to 837,055.20, 1,155,123.48 and 455,078.64 is: 628,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,055.20 : 1,155,123.48 = 455,078.64 : x
  2. Step 2: Convert to fraction form
    837,055.20/1,155,123.48 = 455,078.64/x
  3. Step 3: Cross multiply
    837,055.20x = 1,155,123.48 × 455,078.64
  4. Step 4: Simplify right side
    837,055.20x = 525,672,022,310.47
  5. Step 5: Solve for x
    x = 525,672,022,310.47/837,055.20
  6. Step 6: Final answer
    x = 628,001.62

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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.