Home / 757,715.36-1,045,782.78-451,811.48

Finding the Fourth Proportional to 757,715.36, 1,045,782.78 and 451,811.48

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Solution

The fourth proportional to 757,715.36, 1,045,782.78 and 451,811.48 is: 623,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,715.36 : 1,045,782.78 = 451,811.48 : x
  2. Step 2: Convert to fraction form
    757,715.36/1,045,782.78 = 451,811.48/x
  3. Step 3: Cross multiply
    757,715.36x = 1,045,782.78 × 451,811.48
  4. Step 4: Simplify right side
    757,715.36x = 472,496,665,590.31
  5. Step 5: Solve for x
    x = 472,496,665,590.31/757,715.36
  6. Step 6: Final answer
    x = 623,580.69

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1.5x scale

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.