Home / 459,965.86-689,900.25-123,040.53

Finding the Fourth Proportional to 459,965.86, 689,900.25 and 123,040.53

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Solution

The fourth proportional to 459,965.86, 689,900.25 and 123,040.53 is: 184,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,965.86 : 689,900.25 = 123,040.53 : x
  2. Step 2: Convert to fraction form
    459,965.86/689,900.25 = 123,040.53/x
  3. Step 3: Cross multiply
    459,965.86x = 689,900.25 × 123,040.53
  4. Step 4: Simplify right side
    459,965.86x = 84,885,692,407.13
  5. Step 5: Solve for x
    x = 84,885,692,407.13/459,965.86
  6. Step 6: Final answer
    x = 184,547.81

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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.