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Finding the Fourth Proportional to 1,124,506, 1,686,760.62 and 459,658

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Solution

The fourth proportional to 1,124,506, 1,686,760.62 and 459,658 is: 689,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,506 : 1,686,760.62 = 459,658 : x
  2. Step 2: Convert to fraction form
    1,124,506/1,686,760.62 = 459,658/x
  3. Step 3: Cross multiply
    1,124,506x = 1,686,760.62 × 459,658
  4. Step 4: Simplify right side
    1,124,506x = 775,333,013,067.96
  5. Step 5: Solve for x
    x = 775,333,013,067.96/1,124,506
  6. Step 6: Final answer
    x = 689,487.66

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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.