Home / 476,905.02-715,964.55-309,127.43

Finding the Fourth Proportional to 476,905.02, 715,964.55 and 309,127.43

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Solution

The fourth proportional to 476,905.02, 715,964.55 and 309,127.43 is: 464,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,905.02 : 715,964.55 = 309,127.43 : x
  2. Step 2: Convert to fraction form
    476,905.02/715,964.55 = 309,127.43/x
  3. Step 3: Cross multiply
    476,905.02x = 715,964.55 × 309,127.43
  4. Step 4: Simplify right side
    476,905.02x = 221,324,279,258.42
  5. Step 5: Solve for x
    x = 221,324,279,258.42/476,905.02
  6. Step 6: Final answer
    x = 464,084.60

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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.