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Finding the Fourth Proportional to 786,397, 1,179,595.58 and 195,421

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Solution

The fourth proportional to 786,397, 1,179,595.58 and 195,421 is: 293,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,397 : 1,179,595.58 = 195,421 : x
  2. Step 2: Convert to fraction form
    786,397/1,179,595.58 = 195,421/x
  3. Step 3: Cross multiply
    786,397x = 1,179,595.58 × 195,421
  4. Step 4: Simplify right side
    786,397x = 230,517,747,839.18
  5. Step 5: Solve for x
    x = 230,517,747,839.18/786,397
  6. Step 6: Final answer
    x = 293,131.52

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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.