Home / 457,820.10-686,589.66-316,573.02

Finding the Fourth Proportional to 457,820.10, 686,589.66 and 316,573.02

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Solution

The fourth proportional to 457,820.10, 686,589.66 and 316,573.02 is: 474,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,820.10 : 686,589.66 = 316,573.02 : x
  2. Step 2: Convert to fraction form
    457,820.10/686,589.66 = 316,573.02/x
  3. Step 3: Cross multiply
    457,820.10x = 686,589.66 × 316,573.02
  4. Step 4: Simplify right side
    457,820.10x = 217,355,762,166.97
  5. Step 5: Solve for x
    x = 217,355,762,166.97/457,820.10
  6. Step 6: Final answer
    x = 474,762.38

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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.