Home / 738,989.35-1,019,830.50-428,868.07

Finding the Fourth Proportional to 738,989.35, 1,019,830.50 and 428,868.07

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Solution

The fourth proportional to 738,989.35, 1,019,830.50 and 428,868.07 is: 591,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,989.35 : 1,019,830.50 = 428,868.07 : x
  2. Step 2: Convert to fraction form
    738,989.35/1,019,830.50 = 428,868.07/x
  3. Step 3: Cross multiply
    738,989.35x = 1,019,830.50 × 428,868.07
  4. Step 4: Simplify right side
    738,989.35x = 437,372,735,712.56
  5. Step 5: Solve for x
    x = 437,372,735,712.56/738,989.35
  6. Step 6: Final answer
    x = 591,852.56

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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.