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Finding the Fourth Proportional to 662,136.94, 913,685.70 and 371,682.01

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Solution

The fourth proportional to 662,136.94, 913,685.70 and 371,682.01 is: 512,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,136.94 : 913,685.70 = 371,682.01 : x
  2. Step 2: Convert to fraction form
    662,136.94/913,685.70 = 371,682.01/x
  3. Step 3: Cross multiply
    662,136.94x = 913,685.70 × 371,682.01
  4. Step 4: Simplify right side
    662,136.94x = 339,600,537,484.26
  5. Step 5: Solve for x
    x = 339,600,537,484.26/662,136.94
  6. Step 6: Final answer
    x = 512,885.65

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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.