Home / 872,502.72-1,306,419.96-512,376.72

Finding the Fourth Proportional to 872,502.72, 1,306,419.96 and 512,376.72

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Solution

The fourth proportional to 872,502.72, 1,306,419.96 and 512,376.72 is: 767,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,502.72 : 1,306,419.96 = 512,376.72 : x
  2. Step 2: Convert to fraction form
    872,502.72/1,306,419.96 = 512,376.72/x
  3. Step 3: Cross multiply
    872,502.72x = 1,306,419.96 × 512,376.72
  4. Step 4: Simplify right side
    872,502.72x = 669,379,174,047.33
  5. Step 5: Solve for x
    x = 669,379,174,047.33/872,502.72
  6. Step 6: Final answer
    x = 767,194.37

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1.5x scale

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.