Home / 854,649.84-1,280,924.96-479,885.52

Finding the Fourth Proportional to 854,649.84, 1,280,924.96 and 479,885.52

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Solution

The fourth proportional to 854,649.84, 1,280,924.96 and 479,885.52 is: 719,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,649.84 : 1,280,924.96 = 479,885.52 : x
  2. Step 2: Convert to fraction form
    854,649.84/1,280,924.96 = 479,885.52/x
  3. Step 3: Cross multiply
    854,649.84x = 1,280,924.96 × 479,885.52
  4. Step 4: Simplify right side
    854,649.84x = 614,697,340,510.58
  5. Step 5: Solve for x
    x = 614,697,340,510.58/854,649.84
  6. Step 6: Final answer
    x = 719,238.82

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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.