Home / 877,941.86-1,315,896.23-403,631.78

Finding the Fourth Proportional to 877,941.86, 1,315,896.23 and 403,631.78

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Solution

The fourth proportional to 877,941.86, 1,315,896.23 and 403,631.78 is: 604,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,941.86 : 1,315,896.23 = 403,631.78 : x
  2. Step 2: Convert to fraction form
    877,941.86/1,315,896.23 = 403,631.78/x
  3. Step 3: Cross multiply
    877,941.86x = 1,315,896.23 × 403,631.78
  4. Step 4: Simplify right side
    877,941.86x = 531,137,532,039.79
  5. Step 5: Solve for x
    x = 531,137,532,039.79/877,941.86
  6. Step 6: Final answer
    x = 604,980.31

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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.