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Finding the Fourth Proportional to 675,872.40, 932,689.98 and 369,941.34

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Solution

The fourth proportional to 675,872.40, 932,689.98 and 369,941.34 is: 510,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,872.40 : 932,689.98 = 369,941.34 : x
  2. Step 2: Convert to fraction form
    675,872.40/932,689.98 = 369,941.34/x
  3. Step 3: Cross multiply
    675,872.40x = 932,689.98 × 369,941.34
  4. Step 4: Simplify right side
    675,872.40x = 345,040,581,005.77
  5. Step 5: Solve for x
    x = 345,040,581,005.77/675,872.40
  6. Step 6: Final answer
    x = 510,511.42

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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.