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Finding the Fourth Proportional to 489,389.67, 733,963.01 and 134,386.11

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Solution

The fourth proportional to 489,389.67, 733,963.01 and 134,386.11 is: 201,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,389.67 : 733,963.01 = 134,386.11 : x
  2. Step 2: Convert to fraction form
    489,389.67/733,963.01 = 134,386.11/x
  3. Step 3: Cross multiply
    489,389.67x = 733,963.01 × 134,386.11
  4. Step 4: Simplify right side
    489,389.67x = 98,634,433,125.86
  5. Step 5: Solve for x
    x = 98,634,433,125.86/489,389.67
  6. Step 6: Final answer
    x = 201,545.80

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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.