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Finding the Fourth Proportional to 463,017, 639,045.36 and 272,030.34

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Solution

The fourth proportional to 463,017, 639,045.36 and 272,030.34 is: 375,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,017 : 639,045.36 = 272,030.34 : x
  2. Step 2: Convert to fraction form
    463,017/639,045.36 = 272,030.34/x
  3. Step 3: Cross multiply
    463,017x = 639,045.36 × 272,030.34
  4. Step 4: Simplify right side
    463,017x = 173,839,726,556.22
  5. Step 5: Solve for x
    x = 173,839,726,556.22/463,017
  6. Step 6: Final answer
    x = 375,449.99

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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.