Home / 1,276,877.25-1,915,119.05-424,319.04

Finding the Fourth Proportional to 1,276,877.25, 1,915,119.05 and 424,319.04

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Solution

The fourth proportional to 1,276,877.25, 1,915,119.05 and 424,319.04 is: 636,413.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,877.25 : 1,915,119.05 = 424,319.04 : x
  2. Step 2: Convert to fraction form
    1,276,877.25/1,915,119.05 = 424,319.04/x
  3. Step 3: Cross multiply
    1,276,877.25x = 1,915,119.05 × 424,319.04
  4. Step 4: Simplify right side
    1,276,877.25x = 812,621,474,660.12
  5. Step 5: Solve for x
    x = 812,621,474,660.12/1,276,877.25
  6. Step 6: Final answer
    x = 636,413.15

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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.