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Finding the Fourth Proportional to 626,208.48, 864,168.01 and 339,728.49

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Solution

The fourth proportional to 626,208.48, 864,168.01 and 339,728.49 is: 468,825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,208.48 : 864,168.01 = 339,728.49 : x
  2. Step 2: Convert to fraction form
    626,208.48/864,168.01 = 339,728.49/x
  3. Step 3: Cross multiply
    626,208.48x = 864,168.01 × 339,728.49
  4. Step 4: Simplify right side
    626,208.48x = 293,582,492,294.28
  5. Step 5: Solve for x
    x = 293,582,492,294.28/626,208.48
  6. Step 6: Final answer
    x = 468,825.48

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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.