Home / 910,627.42-1,256,830.34-543,128.12

Finding the Fourth Proportional to 910,627.42, 1,256,830.34 and 543,128.12

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Solution

The fourth proportional to 910,627.42, 1,256,830.34 and 543,128.12 is: 749,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,627.42 : 1,256,830.34 = 543,128.12 : x
  2. Step 2: Convert to fraction form
    910,627.42/1,256,830.34 = 543,128.12/x
  3. Step 3: Cross multiply
    910,627.42x = 1,256,830.34 × 543,128.12
  4. Step 4: Simplify right side
    910,627.42x = 682,619,890,723.37
  5. Step 5: Solve for x
    x = 682,619,890,723.37/910,627.42
  6. Step 6: Final answer
    x = 749,614.91

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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.