Home / 1,503,387.36-2,255,412.74-438,512.76

Finding the Fourth Proportional to 1,503,387.36, 2,255,412.74 and 438,512.76

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Solution

The fourth proportional to 1,503,387.36, 2,255,412.74 and 438,512.76 is: 657,865.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,387.36 : 2,255,412.74 = 438,512.76 : x
  2. Step 2: Convert to fraction form
    1,503,387.36/2,255,412.74 = 438,512.76/x
  3. Step 3: Cross multiply
    1,503,387.36x = 2,255,412.74 × 438,512.76
  4. Step 4: Simplify right side
    1,503,387.36x = 989,027,263,364.00
  5. Step 5: Solve for x
    x = 989,027,263,364.00/1,503,387.36
  6. Step 6: Final answer
    x = 657,865.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.