Home / 999,284.10-1,379,462.40-637,194.66

Finding the Fourth Proportional to 999,284.10, 1,379,462.40 and 637,194.66

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Solution

The fourth proportional to 999,284.10, 1,379,462.40 and 637,194.66 is: 879,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,284.10 : 1,379,462.40 = 637,194.66 : x
  2. Step 2: Convert to fraction form
    999,284.10/1,379,462.40 = 637,194.66/x
  3. Step 3: Cross multiply
    999,284.10x = 1,379,462.40 × 637,194.66
  4. Step 4: Simplify right side
    999,284.10x = 878,986,074,950.78
  5. Step 5: Solve for x
    x = 878,986,074,950.78/999,284.10
  6. Step 6: Final answer
    x = 879,615.79

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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.