Home / 854,779.40-1,282,169.10-815,413.40

Finding the Fourth Proportional to 854,779.40, 1,282,169.10 and 815,413.40

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Solution

The fourth proportional to 854,779.40, 1,282,169.10 and 815,413.40 is: 1,223,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,779.40 : 1,282,169.10 = 815,413.40 : x
  2. Step 2: Convert to fraction form
    854,779.40/1,282,169.10 = 815,413.40/x
  3. Step 3: Cross multiply
    854,779.40x = 1,282,169.10 × 815,413.40
  4. Step 4: Simplify right side
    854,779.40x = 1,045,497,865,205.94
  5. Step 5: Solve for x
    x = 1,045,497,865,205.94/854,779.40
  6. Step 6: Final answer
    x = 1,223,120.10

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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.