Home / 645,151.50-967,890.33-455,983.74

Finding the Fourth Proportional to 645,151.50, 967,890.33 and 455,983.74

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Solution

The fourth proportional to 645,151.50, 967,890.33 and 455,983.74 is: 684,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,151.50 : 967,890.33 = 455,983.74 : x
  2. Step 2: Convert to fraction form
    645,151.50/967,890.33 = 455,983.74/x
  3. Step 3: Cross multiply
    645,151.50x = 967,890.33 × 455,983.74
  4. Step 4: Simplify right side
    645,151.50x = 441,342,252,583.23
  5. Step 5: Solve for x
    x = 441,342,252,583.23/645,151.50
  6. Step 6: Final answer
    x = 684,090.87

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1.5x scale

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.