Home / 854,555.10-1,280,143.05-749,492.70

Finding the Fourth Proportional to 854,555.10, 1,280,143.05 and 749,492.70

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Solution

The fourth proportional to 854,555.10, 1,280,143.05 and 749,492.70 is: 1,122,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,555.10 : 1,280,143.05 = 749,492.70 : x
  2. Step 2: Convert to fraction form
    854,555.10/1,280,143.05 = 749,492.70/x
  3. Step 3: Cross multiply
    854,555.10x = 1,280,143.05 × 749,492.70
  4. Step 4: Simplify right side
    854,555.10x = 959,457,870,930.74
  5. Step 5: Solve for x
    x = 959,457,870,930.74/854,555.10
  6. Step 6: Final answer
    x = 1,122,757.18

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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.