Home / 626,868.18-865,069.08-354,928.98

Finding the Fourth Proportional to 626,868.18, 865,069.08 and 354,928.98

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Solution

The fourth proportional to 626,868.18, 865,069.08 and 354,928.98 is: 489,796.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,868.18 : 865,069.08 = 354,928.98 : x
  2. Step 2: Convert to fraction form
    626,868.18/865,069.08 = 354,928.98/x
  3. Step 3: Cross multiply
    626,868.18x = 865,069.08 × 354,928.98
  4. Step 4: Simplify right side
    626,868.18x = 307,038,086,193.94
  5. Step 5: Solve for x
    x = 307,038,086,193.94/626,868.18
  6. Step 6: Final answer
    x = 489,796.89

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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.