Home / 679,492.98-1,019,239.70-199,720.89

Finding the Fourth Proportional to 679,492.98, 1,019,239.70 and 199,720.89

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Solution

The fourth proportional to 679,492.98, 1,019,239.70 and 199,720.89 is: 299,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,492.98 : 1,019,239.70 = 199,720.89 : x
  2. Step 2: Convert to fraction form
    679,492.98/1,019,239.70 = 199,720.89/x
  3. Step 3: Cross multiply
    679,492.98x = 1,019,239.70 × 199,720.89
  4. Step 4: Simplify right side
    679,492.98x = 203,563,459,008.73
  5. Step 5: Solve for x
    x = 203,563,459,008.73/679,492.98
  6. Step 6: Final answer
    x = 299,581.40

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Double scale
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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.