Home / 689,157.12-1,033,722.72-375,609.36

Finding the Fourth Proportional to 689,157.12, 1,033,722.72 and 375,609.36

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Solution

The fourth proportional to 689,157.12, 1,033,722.72 and 375,609.36 is: 563,406.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,157.12 : 1,033,722.72 = 375,609.36 : x
  2. Step 2: Convert to fraction form
    689,157.12/1,033,722.72 = 375,609.36/x
  3. Step 3: Cross multiply
    689,157.12x = 1,033,722.72 × 375,609.36
  4. Step 4: Simplify right side
    689,157.12x = 388,275,929,276.66
  5. Step 5: Solve for x
    x = 388,275,929,276.66/689,157.12
  6. Step 6: Final answer
    x = 563,406.98

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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.