Home / 854,126.15-1,178,637.91-491,491.47

Finding the Fourth Proportional to 854,126.15, 1,178,637.91 and 491,491.47

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Solution

The fourth proportional to 854,126.15, 1,178,637.91 and 491,491.47 is: 678,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,126.15 : 1,178,637.91 = 491,491.47 : x
  2. Step 2: Convert to fraction form
    854,126.15/1,178,637.91 = 491,491.47/x
  3. Step 3: Cross multiply
    854,126.15x = 1,178,637.91 × 491,491.47
  4. Step 4: Simplify right side
    854,126.15x = 579,290,477,754.90
  5. Step 5: Solve for x
    x = 579,290,477,754.90/854,126.15
  6. Step 6: Final answer
    x = 678,225.91

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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.