Home / 838,488.13-1,157,832.93-811,373.74

Finding the Fourth Proportional to 838,488.13, 1,157,832.93 and 811,373.74

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Solution

The fourth proportional to 838,488.13, 1,157,832.93 and 811,373.74 is: 1,120,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,488.13 : 1,157,832.93 = 811,373.74 : x
  2. Step 2: Convert to fraction form
    838,488.13/1,157,832.93 = 811,373.74/x
  3. Step 3: Cross multiply
    838,488.13x = 1,157,832.93 × 811,373.74
  4. Step 4: Simplify right side
    838,488.13x = 939,435,231,814.68
  5. Step 5: Solve for x
    x = 939,435,231,814.68/838,488.13
  6. Step 6: Final answer
    x = 1,120,391.81

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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.