Home / 838,511.81-1,157,121-465,973.46

Finding the Fourth Proportional to 838,511.81, 1,157,121 and 465,973.46

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Solution

The fourth proportional to 838,511.81, 1,157,121 and 465,973.46 is: 643,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,511.81 : 1,157,121 = 465,973.46 : x
  2. Step 2: Convert to fraction form
    838,511.81/1,157,121 = 465,973.46/x
  3. Step 3: Cross multiply
    838,511.81x = 1,157,121 × 465,973.46
  4. Step 4: Simplify right side
    838,511.81x = 539,187,670,223.06
  5. Step 5: Solve for x
    x = 539,187,670,223.06/838,511.81
  6. Step 6: Final answer
    x = 643,029.31

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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.