Home / 749,676.42-1,034,550.36-405,512.55

Finding the Fourth Proportional to 749,676.42, 1,034,550.36 and 405,512.55

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Solution

The fourth proportional to 749,676.42, 1,034,550.36 and 405,512.55 is: 559,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,676.42 : 1,034,550.36 = 405,512.55 : x
  2. Step 2: Convert to fraction form
    749,676.42/1,034,550.36 = 405,512.55/x
  3. Step 3: Cross multiply
    749,676.42x = 1,034,550.36 × 405,512.55
  4. Step 4: Simplify right side
    749,676.42x = 419,523,154,587.02
  5. Step 5: Solve for x
    x = 419,523,154,587.02/749,676.42
  6. Step 6: Final answer
    x = 559,605.64

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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.