Home / 670,312.20-1,004,885.10-403,789.80

Finding the Fourth Proportional to 670,312.20, 1,004,885.10 and 403,789.80

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Solution

The fourth proportional to 670,312.20, 1,004,885.10 and 403,789.80 is: 605,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,312.20 : 1,004,885.10 = 403,789.80 : x
  2. Step 2: Convert to fraction form
    670,312.20/1,004,885.10 = 403,789.80/x
  3. Step 3: Cross multiply
    670,312.20x = 1,004,885.10 × 403,789.80
  4. Step 4: Simplify right side
    670,312.20x = 405,762,353,551.98
  5. Step 5: Solve for x
    x = 405,762,353,551.98/670,312.20
  6. Step 6: Final answer
    x = 605,333.39

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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.