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Finding the Fourth Proportional to 999,516.12, 1,497,705 and 679,820.46

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Solution

The fourth proportional to 999,516.12, 1,497,705 and 679,820.46 is: 1,018,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,516.12 : 1,497,705 = 679,820.46 : x
  2. Step 2: Convert to fraction form
    999,516.12/1,497,705 = 679,820.46/x
  3. Step 3: Cross multiply
    999,516.12x = 1,497,705 × 679,820.46
  4. Step 4: Simplify right side
    999,516.12x = 1,018,170,494,555.77
  5. Step 5: Solve for x
    x = 1,018,170,494,555.77/999,516.12
  6. Step 6: Final answer
    x = 1,018,663.41

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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.