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Finding the Fourth Proportional to 497,459.44, 686,604.83 and 316,136.01

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Solution

The fourth proportional to 497,459.44, 686,604.83 and 316,136.01 is: 436,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,459.44 : 686,604.83 = 316,136.01 : x
  2. Step 2: Convert to fraction form
    497,459.44/686,604.83 = 316,136.01/x
  3. Step 3: Cross multiply
    497,459.44x = 686,604.83 × 316,136.01
  4. Step 4: Simplify right side
    497,459.44x = 217,060,511,402.93
  5. Step 5: Solve for x
    x = 217,060,511,402.93/497,459.44
  6. Step 6: Final answer
    x = 436,338.11

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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.