Home / 757,904.57-1,137,450.71-528,709.40

Finding the Fourth Proportional to 757,904.57, 1,137,450.71 and 528,709.40

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Solution

The fourth proportional to 757,904.57, 1,137,450.71 and 528,709.40 is: 793,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,904.57 : 1,137,450.71 = 528,709.40 : x
  2. Step 2: Convert to fraction form
    757,904.57/1,137,450.71 = 528,709.40/x
  3. Step 3: Cross multiply
    757,904.57x = 1,137,450.71 × 528,709.40
  4. Step 4: Simplify right side
    757,904.57x = 601,380,882,613.75
  5. Step 5: Solve for x
    x = 601,380,882,613.75/757,904.57
  6. Step 6: Final answer
    x = 793,478.37

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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.