Home / 757,705.20-1,045,768.64-451,801.28

Finding the Fourth Proportional to 757,705.20, 1,045,768.64 and 451,801.28

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Solution

The fourth proportional to 757,705.20, 1,045,768.64 and 451,801.28 is: 623,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,705.20 : 1,045,768.64 = 451,801.28 : x
  2. Step 2: Convert to fraction form
    757,705.20/1,045,768.64 = 451,801.28/x
  3. Step 3: Cross multiply
    757,705.20x = 1,045,768.64 × 451,801.28
  4. Step 4: Simplify right side
    757,705.20x = 472,479,610,135.86
  5. Step 5: Solve for x
    x = 472,479,610,135.86/757,705.20
  6. Step 6: Final answer
    x = 623,566.54

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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.