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Finding the Fourth Proportional to 637,918.80, 955,697.40 and 371,806.80

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Solution

The fourth proportional to 637,918.80, 955,697.40 and 371,806.80 is: 557,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,918.80 : 955,697.40 = 371,806.80 : x
  2. Step 2: Convert to fraction form
    637,918.80/955,697.40 = 371,806.80/x
  3. Step 3: Cross multiply
    637,918.80x = 955,697.40 × 371,806.80
  4. Step 4: Simplify right side
    637,918.80x = 355,334,792,062.32
  5. Step 5: Solve for x
    x = 355,334,792,062.32/637,918.80
  6. Step 6: Final answer
    x = 557,021.98

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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.