Home / 838,830.94-1,257,766.62-389,320.36

Finding the Fourth Proportional to 838,830.94, 1,257,766.62 and 389,320.36

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Solution

The fourth proportional to 838,830.94, 1,257,766.62 and 389,320.36 is: 583,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,830.94 : 1,257,766.62 = 389,320.36 : x
  2. Step 2: Convert to fraction form
    838,830.94/1,257,766.62 = 389,320.36/x
  3. Step 3: Cross multiply
    838,830.94x = 1,257,766.62 × 389,320.36
  4. Step 4: Simplify right side
    838,830.94x = 489,674,153,294.38
  5. Step 5: Solve for x
    x = 489,674,153,294.38/838,830.94
  6. Step 6: Final answer
    x = 583,757.86

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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.