Home / 936,540.18-1,292,428.67-506,820.20

Finding the Fourth Proportional to 936,540.18, 1,292,428.67 and 506,820.20

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Solution

The fourth proportional to 936,540.18, 1,292,428.67 and 506,820.20 is: 699,413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,540.18 : 1,292,428.67 = 506,820.20 : x
  2. Step 2: Convert to fraction form
    936,540.18/1,292,428.67 = 506,820.20/x
  3. Step 3: Cross multiply
    936,540.18x = 1,292,428.67 × 506,820.20
  4. Step 4: Simplify right side
    936,540.18x = 655,028,948,018.89
  5. Step 5: Solve for x
    x = 655,028,948,018.89/936,540.18
  6. Step 6: Final answer
    x = 699,413.61

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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.