Home / 812,704.74-1,121,483.27-450,106.98

Finding the Fourth Proportional to 812,704.74, 1,121,483.27 and 450,106.98

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Solution

The fourth proportional to 812,704.74, 1,121,483.27 and 450,106.98 is: 621,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,704.74 : 1,121,483.27 = 450,106.98 : x
  2. Step 2: Convert to fraction form
    812,704.74/1,121,483.27 = 450,106.98/x
  3. Step 3: Cross multiply
    812,704.74x = 1,121,483.27 × 450,106.98
  4. Step 4: Simplify right side
    812,704.74x = 504,787,444,699.93
  5. Step 5: Solve for x
    x = 504,787,444,699.93/812,704.74
  6. Step 6: Final answer
    x = 621,120.34

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Double scale
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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.