Home / 849,138.66-1,273,666.46-316,618.16

Finding the Fourth Proportional to 849,138.66, 1,273,666.46 and 316,618.16

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Solution

The fourth proportional to 849,138.66, 1,273,666.46 and 316,618.16 is: 474,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,138.66 : 1,273,666.46 = 316,618.16 : x
  2. Step 2: Convert to fraction form
    849,138.66/1,273,666.46 = 316,618.16/x
  3. Step 3: Cross multiply
    849,138.66x = 1,273,666.46 × 316,618.16
  4. Step 4: Simplify right side
    849,138.66x = 403,265,923,067.49
  5. Step 5: Solve for x
    x = 403,265,923,067.49/849,138.66
  6. Step 6: Final answer
    x = 474,911.75

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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.