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Finding the Fourth Proportional to 663,644.10, 994,688.55 and 497,237.70

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Solution

The fourth proportional to 663,644.10, 994,688.55 and 497,237.70 is: 745,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,644.10 : 994,688.55 = 497,237.70 : x
  2. Step 2: Convert to fraction form
    663,644.10/994,688.55 = 497,237.70/x
  3. Step 3: Cross multiply
    663,644.10x = 994,688.55 × 497,237.70
  4. Step 4: Simplify right side
    663,644.10x = 494,596,646,818.34
  5. Step 5: Solve for x
    x = 494,596,646,818.34/663,644.10
  6. Step 6: Final answer
    x = 745,273.93

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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.