Home / 669,401.80-1,002,741.90-415,904.20

Finding the Fourth Proportional to 669,401.80, 1,002,741.90 and 415,904.20

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Solution

The fourth proportional to 669,401.80, 1,002,741.90 and 415,904.20 is: 623,010.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,401.80 : 1,002,741.90 = 415,904.20 : x
  2. Step 2: Convert to fraction form
    669,401.80/1,002,741.90 = 415,904.20/x
  3. Step 3: Cross multiply
    669,401.80x = 1,002,741.90 × 415,904.20
  4. Step 4: Simplify right side
    669,401.80x = 417,044,567,725.98
  5. Step 5: Solve for x
    x = 417,044,567,725.98/669,401.80
  6. Step 6: Final answer
    x = 623,010.83

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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.