Home / 459,966.12-689,900.65-123,040.79

Finding the Fourth Proportional to 459,966.12, 689,900.65 and 123,040.79

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Solution

The fourth proportional to 459,966.12, 689,900.65 and 123,040.79 is: 184,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,966.12 : 689,900.65 = 123,040.79 : x
  2. Step 2: Convert to fraction form
    459,966.12/689,900.65 = 123,040.79/x
  3. Step 3: Cross multiply
    459,966.12x = 689,900.65 × 123,040.79
  4. Step 4: Simplify right side
    459,966.12x = 84,885,917,240.41
  5. Step 5: Solve for x
    x = 84,885,917,240.41/459,966.12
  6. Step 6: Final answer
    x = 184,548.20

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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.