Home / 754,971.33-1,041,877.76-428,306.21

Finding the Fourth Proportional to 754,971.33, 1,041,877.76 and 428,306.21

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Solution

The fourth proportional to 754,971.33, 1,041,877.76 and 428,306.21 is: 591,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,971.33 : 1,041,877.76 = 428,306.21 : x
  2. Step 2: Convert to fraction form
    754,971.33/1,041,877.76 = 428,306.21/x
  3. Step 3: Cross multiply
    754,971.33x = 1,041,877.76 × 428,306.21
  4. Step 4: Simplify right side
    754,971.33x = 446,242,711,908.56
  5. Step 5: Solve for x
    x = 446,242,711,908.56/754,971.33
  6. Step 6: Final answer
    x = 591,072.39

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1.5x scale

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.