Home / 675,208.60-1,012,812.90-423,266.20

Finding the Fourth Proportional to 675,208.60, 1,012,812.90 and 423,266.20

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Solution

The fourth proportional to 675,208.60, 1,012,812.90 and 423,266.20 is: 634,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,208.60 : 1,012,812.90 = 423,266.20 : x
  2. Step 2: Convert to fraction form
    675,208.60/1,012,812.90 = 423,266.20/x
  3. Step 3: Cross multiply
    675,208.60x = 1,012,812.90 × 423,266.20
  4. Step 4: Simplify right side
    675,208.60x = 428,689,467,493.98
  5. Step 5: Solve for x
    x = 428,689,467,493.98/675,208.60
  6. Step 6: Final answer
    x = 634,899.30

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Similar ratio
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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.