Home / 838,603.80-1,257,905.70-788,740.20

Finding the Fourth Proportional to 838,603.80, 1,257,905.70 and 788,740.20

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Solution

The fourth proportional to 838,603.80, 1,257,905.70 and 788,740.20 is: 1,183,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,603.80 : 1,257,905.70 = 788,740.20 : x
  2. Step 2: Convert to fraction form
    838,603.80/1,257,905.70 = 788,740.20/x
  3. Step 3: Cross multiply
    838,603.80x = 1,257,905.70 × 788,740.20
  4. Step 4: Simplify right side
    838,603.80x = 992,160,793,399.14
  5. Step 5: Solve for x
    x = 992,160,793,399.14/838,603.80
  6. Step 6: Final answer
    x = 1,183,110.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.