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Finding the Fourth Proportional to 993,252, 1,490,111.52 and 328,404

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Solution

The fourth proportional to 993,252, 1,490,111.52 and 328,404 is: 492,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,252 : 1,490,111.52 = 328,404 : x
  2. Step 2: Convert to fraction form
    993,252/1,490,111.52 = 328,404/x
  3. Step 3: Cross multiply
    993,252x = 1,490,111.52 × 328,404
  4. Step 4: Simplify right side
    993,252x = 489,358,583,614.08
  5. Step 5: Solve for x
    x = 489,358,583,614.08/993,252
  6. Step 6: Final answer
    x = 492,683.21

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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.