Home / 971,638.80-1,457,458.20-869,287.20

Finding the Fourth Proportional to 971,638.80, 1,457,458.20 and 869,287.20

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Solution

The fourth proportional to 971,638.80, 1,457,458.20 and 869,287.20 is: 1,303,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,638.80 : 1,457,458.20 = 869,287.20 : x
  2. Step 2: Convert to fraction form
    971,638.80/1,457,458.20 = 869,287.20/x
  3. Step 3: Cross multiply
    971,638.80x = 1,457,458.20 × 869,287.20
  4. Step 4: Simplify right side
    971,638.80x = 1,266,949,757,795.04
  5. Step 5: Solve for x
    x = 1,266,949,757,795.04/971,638.80
  6. Step 6: Final answer
    x = 1,303,930.80

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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.