Home / 687,146.07-1,030,220.76-461,947.85

Finding the Fourth Proportional to 687,146.07, 1,030,220.76 and 461,947.85

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Solution

The fourth proportional to 687,146.07, 1,030,220.76 and 461,947.85 is: 692,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,146.07 : 1,030,220.76 = 461,947.85 : x
  2. Step 2: Convert to fraction form
    687,146.07/1,030,220.76 = 461,947.85/x
  3. Step 3: Cross multiply
    687,146.07x = 1,030,220.76 × 461,947.85
  4. Step 4: Simplify right side
    687,146.07x = 475,908,265,107.37
  5. Step 5: Solve for x
    x = 475,908,265,107.37/687,146.07
  6. Step 6: Final answer
    x = 692,586.75

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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.