Home / 878,780.90-1,317,702.48-416,673.26

Finding the Fourth Proportional to 878,780.90, 1,317,702.48 and 416,673.26

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Solution

The fourth proportional to 878,780.90, 1,317,702.48 and 416,673.26 is: 624,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,780.90 : 1,317,702.48 = 416,673.26 : x
  2. Step 2: Convert to fraction form
    878,780.90/1,317,702.48 = 416,673.26/x
  3. Step 3: Cross multiply
    878,780.90x = 1,317,702.48 × 416,673.26
  4. Step 4: Simplify right side
    878,780.90x = 549,051,394,597.90
  5. Step 5: Solve for x
    x = 549,051,394,597.90/878,780.90
  6. Step 6: Final answer
    x = 624,787.59

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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.