Home / 936,531.72-1,292,413.68-506,811.78

Finding the Fourth Proportional to 936,531.72, 1,292,413.68 and 506,811.78

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Solution

The fourth proportional to 936,531.72, 1,292,413.68 and 506,811.78 is: 699,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,531.72 : 1,292,413.68 = 506,811.78 : x
  2. Step 2: Convert to fraction form
    936,531.72/1,292,413.68 = 506,811.78/x
  3. Step 3: Cross multiply
    936,531.72x = 1,292,413.68 × 506,811.78
  4. Step 4: Simplify right side
    936,531.72x = 655,010,477,657.15
  5. Step 5: Solve for x
    x = 655,010,477,657.15/936,531.72
  6. Step 6: Final answer
    x = 699,400.21

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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.