Home / 837,139.01-1,155,243.68-455,165.78

Finding the Fourth Proportional to 837,139.01, 1,155,243.68 and 455,165.78

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Solution

The fourth proportional to 837,139.01, 1,155,243.68 and 455,165.78 is: 628,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,139.01 : 1,155,243.68 = 455,165.78 : x
  2. Step 2: Convert to fraction form
    837,139.01/1,155,243.68 = 455,165.78/x
  3. Step 3: Cross multiply
    837,139.01x = 1,155,243.68 × 455,165.78
  4. Step 4: Simplify right side
    837,139.01x = 525,827,382,645.22
  5. Step 5: Solve for x
    x = 525,827,382,645.22/837,139.01
  6. Step 6: Final answer
    x = 628,124.34

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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.