Home / 738,467.62-1,019,166.80-428,438.50

Finding the Fourth Proportional to 738,467.62, 1,019,166.80 and 428,438.50

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Solution

The fourth proportional to 738,467.62, 1,019,166.80 and 428,438.50 is: 591,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,467.62 : 1,019,166.80 = 428,438.50 : x
  2. Step 2: Convert to fraction form
    738,467.62/1,019,166.80 = 428,438.50/x
  3. Step 3: Cross multiply
    738,467.62x = 1,019,166.80 × 428,438.50
  4. Step 4: Simplify right side
    738,467.62x = 436,650,290,351.69
  5. Step 5: Solve for x
    x = 436,650,290,351.69/738,467.62
  6. Step 6: Final answer
    x = 591,292.40

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Double scale
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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.