Home / 741,409.75-1,020,387.41-611,307.55

Finding the Fourth Proportional to 741,409.75, 1,020,387.41 and 611,307.55

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Solution

The fourth proportional to 741,409.75, 1,020,387.41 and 611,307.55 is: 841,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,409.75 : 1,020,387.41 = 611,307.55 : x
  2. Step 2: Convert to fraction form
    741,409.75/1,020,387.41 = 611,307.55/x
  3. Step 3: Cross multiply
    741,409.75x = 1,020,387.41 × 611,307.55
  4. Step 4: Simplify right side
    741,409.75x = 623,770,524,601.41
  5. Step 5: Solve for x
    x = 623,770,524,601.41/741,409.75
  6. Step 6: Final answer
    x = 841,330.35

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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.