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Finding the Fourth Proportional to 678,701.88, 936,262.17 and 433,428.84

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Solution

The fourth proportional to 678,701.88, 936,262.17 and 433,428.84 is: 597,910.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,701.88 : 936,262.17 = 433,428.84 : x
  2. Step 2: Convert to fraction form
    678,701.88/936,262.17 = 433,428.84/x
  3. Step 3: Cross multiply
    678,701.88x = 936,262.17 × 433,428.84
  4. Step 4: Simplify right side
    678,701.88x = 405,803,026,278.98
  5. Step 5: Solve for x
    x = 405,803,026,278.98/678,701.88
  6. Step 6: Final answer
    x = 597,910.57

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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.