Home / 877,942.86-1,315,897.73-403,632.78

Finding the Fourth Proportional to 877,942.86, 1,315,897.73 and 403,632.78

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Solution

The fourth proportional to 877,942.86, 1,315,897.73 and 403,632.78 is: 604,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,942.86 : 1,315,897.73 = 403,632.78 : x
  2. Step 2: Convert to fraction form
    877,942.86/1,315,897.73 = 403,632.78/x
  3. Step 3: Cross multiply
    877,942.86x = 1,315,897.73 × 403,632.78
  4. Step 4: Simplify right side
    877,942.86x = 531,139,458,955.59
  5. Step 5: Solve for x
    x = 531,139,458,955.59/877,942.86
  6. Step 6: Final answer
    x = 604,981.81

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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.