Home / 457,948.37-686,782.62-316,701.38

Finding the Fourth Proportional to 457,948.37, 686,782.62 and 316,701.38

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Solution

The fourth proportional to 457,948.37, 686,782.62 and 316,701.38 is: 474,955.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,948.37 : 686,782.62 = 316,701.38 : x
  2. Step 2: Convert to fraction form
    457,948.37/686,782.62 = 316,701.38/x
  3. Step 3: Cross multiply
    457,948.37x = 686,782.62 × 316,701.38
  4. Step 4: Simplify right side
    457,948.37x = 217,505,000,080.10
  5. Step 5: Solve for x
    x = 217,505,000,080.10/457,948.37
  6. Step 6: Final answer
    x = 474,955.29

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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.