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Finding the Fourth Proportional to 641,096.98, 884,658.72 and 354,545.74

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Solution

The fourth proportional to 641,096.98, 884,658.72 and 354,545.74 is: 489,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,096.98 : 884,658.72 = 354,545.74 : x
  2. Step 2: Convert to fraction form
    641,096.98/884,658.72 = 354,545.74/x
  3. Step 3: Cross multiply
    641,096.98x = 884,658.72 × 354,545.74
  4. Step 4: Simplify right side
    641,096.98x = 313,651,980,529.85
  5. Step 5: Solve for x
    x = 313,651,980,529.85/641,096.98
  6. Step 6: Final answer
    x = 489,242.64

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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.