Home / 913,379.68-1,260,466.35-505,509.64

Finding the Fourth Proportional to 913,379.68, 1,260,466.35 and 505,509.64

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Solution

The fourth proportional to 913,379.68, 1,260,466.35 and 505,509.64 is: 697,604.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,379.68 : 1,260,466.35 = 505,509.64 : x
  2. Step 2: Convert to fraction form
    913,379.68/1,260,466.35 = 505,509.64/x
  3. Step 3: Cross multiply
    913,379.68x = 1,260,466.35 × 505,509.64
  4. Step 4: Simplify right side
    913,379.68x = 637,177,890,820.61
  5. Step 5: Solve for x
    x = 637,177,890,820.61/913,379.68
  6. Step 6: Final answer
    x = 697,604.63

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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.