Home / 876,279.12-1,209,452.52-553,783.44

Finding the Fourth Proportional to 876,279.12, 1,209,452.52 and 553,783.44

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Solution

The fourth proportional to 876,279.12, 1,209,452.52 and 553,783.44 is: 764,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,279.12 : 1,209,452.52 = 553,783.44 : x
  2. Step 2: Convert to fraction form
    876,279.12/1,209,452.52 = 553,783.44/x
  3. Step 3: Cross multiply
    876,279.12x = 1,209,452.52 × 553,783.44
  4. Step 4: Simplify right side
    876,279.12x = 669,774,777,042.27
  5. Step 5: Solve for x
    x = 669,774,777,042.27/876,279.12
  6. Step 6: Final answer
    x = 764,339.54

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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.