Home / 866,495.80-1,299,743.70-729,638.20

Finding the Fourth Proportional to 866,495.80, 1,299,743.70 and 729,638.20

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Solution

The fourth proportional to 866,495.80, 1,299,743.70 and 729,638.20 is: 1,094,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,495.80 : 1,299,743.70 = 729,638.20 : x
  2. Step 2: Convert to fraction form
    866,495.80/1,299,743.70 = 729,638.20/x
  3. Step 3: Cross multiply
    866,495.80x = 1,299,743.70 × 729,638.20
  4. Step 4: Simplify right side
    866,495.80x = 948,342,653,729.34
  5. Step 5: Solve for x
    x = 948,342,653,729.34/866,495.80
  6. Step 6: Final answer
    x = 1,094,457.30

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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.