Home / 649,304.40-973,294.20-438,963.60

Finding the Fourth Proportional to 649,304.40, 973,294.20 and 438,963.60

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Solution

The fourth proportional to 649,304.40, 973,294.20 and 438,963.60 is: 657,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,304.40 : 973,294.20 = 438,963.60 : x
  2. Step 2: Convert to fraction form
    649,304.40/973,294.20 = 438,963.60/x
  3. Step 3: Cross multiply
    649,304.40x = 973,294.20 × 438,963.60
  4. Step 4: Simplify right side
    649,304.40x = 427,240,725,891.12
  5. Step 5: Solve for x
    x = 427,240,725,891.12/649,304.40
  6. Step 6: Final answer
    x = 657,997.58

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1.5x scale

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.