Home / 1,251,780.84-1,727,457.96-678,820.84

Finding the Fourth Proportional to 1,251,780.84, 1,727,457.96 and 678,820.84

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Solution

The fourth proportional to 1,251,780.84, 1,727,457.96 and 678,820.84 is: 936,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,780.84 : 1,727,457.96 = 678,820.84 : x
  2. Step 2: Convert to fraction form
    1,251,780.84/1,727,457.96 = 678,820.84/x
  3. Step 3: Cross multiply
    1,251,780.84x = 1,727,457.96 × 678,820.84
  4. Step 4: Simplify right side
    1,251,780.84x = 1,172,634,463,471.89
  5. Step 5: Solve for x
    x = 1,172,634,463,471.89/1,251,780.84
  6. Step 6: Final answer
    x = 936,772.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.