Home / 738,021.96-1,018,438.74-411,317.55

Finding the Fourth Proportional to 738,021.96, 1,018,438.74 and 411,317.55

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Solution

The fourth proportional to 738,021.96, 1,018,438.74 and 411,317.55 is: 567,600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,021.96 : 1,018,438.74 = 411,317.55 : x
  2. Step 2: Convert to fraction form
    738,021.96/1,018,438.74 = 411,317.55/x
  3. Step 3: Cross multiply
    738,021.96x = 1,018,438.74 × 411,317.55
  4. Step 4: Simplify right side
    738,021.96x = 418,901,727,361.89
  5. Step 5: Solve for x
    x = 418,901,727,361.89/738,021.96
  6. Step 6: Final answer
    x = 567,600.63

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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.