Home / 498,941.28-689,267.52-431,756.64

Finding the Fourth Proportional to 498,941.28, 689,267.52 and 431,756.64

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Solution

The fourth proportional to 498,941.28, 689,267.52 and 431,756.64 is: 596,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,941.28 : 689,267.52 = 431,756.64 : x
  2. Step 2: Convert to fraction form
    498,941.28/689,267.52 = 431,756.64/x
  3. Step 3: Cross multiply
    498,941.28x = 689,267.52 × 431,756.64
  4. Step 4: Simplify right side
    498,941.28x = 297,595,828,496.33
  5. Step 5: Solve for x
    x = 297,595,828,496.33/498,941.28
  6. Step 6: Final answer
    x = 596,454.61

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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.