Home / 920,007.23-1,269,609.89-512,100.30

Finding the Fourth Proportional to 920,007.23, 1,269,609.89 and 512,100.30

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Solution

The fourth proportional to 920,007.23, 1,269,609.89 and 512,100.30 is: 706,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,007.23 : 1,269,609.89 = 512,100.30 : x
  2. Step 2: Convert to fraction form
    920,007.23/1,269,609.89 = 512,100.30/x
  3. Step 3: Cross multiply
    920,007.23x = 1,269,609.89 × 512,100.30
  4. Step 4: Simplify right side
    920,007.23x = 650,167,602,991.47
  5. Step 5: Solve for x
    x = 650,167,602,991.47/920,007.23
  6. Step 6: Final answer
    x = 706,698.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.