Home / 911,270.10-1,257,544.82-503,400.40

Finding the Fourth Proportional to 911,270.10, 1,257,544.82 and 503,400.40

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Solution

The fourth proportional to 911,270.10, 1,257,544.82 and 503,400.40 is: 694,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,270.10 : 1,257,544.82 = 503,400.40 : x
  2. Step 2: Convert to fraction form
    911,270.10/1,257,544.82 = 503,400.40/x
  3. Step 3: Cross multiply
    911,270.10x = 1,257,544.82 × 503,400.40
  4. Step 4: Simplify right side
    911,270.10x = 633,048,565,405.93
  5. Step 5: Solve for x
    x = 633,048,565,405.93/911,270.10
  6. Step 6: Final answer
    x = 694,688.18

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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.