Home / 649,255.90-973,221.45-438,915.10

Finding the Fourth Proportional to 649,255.90, 973,221.45 and 438,915.10

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Solution

The fourth proportional to 649,255.90, 973,221.45 and 438,915.10 is: 657,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,255.90 : 973,221.45 = 438,915.10 : x
  2. Step 2: Convert to fraction form
    649,255.90/973,221.45 = 438,915.10/x
  3. Step 3: Cross multiply
    649,255.90x = 973,221.45 × 438,915.10
  4. Step 4: Simplify right side
    649,255.90x = 427,161,590,048.90
  5. Step 5: Solve for x
    x = 427,161,590,048.90/649,255.90
  6. Step 6: Final answer
    x = 657,924.85

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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.