Home / 669,180.06-1,003,178.79-512,109.72

Finding the Fourth Proportional to 669,180.06, 1,003,178.79 and 512,109.72

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Solution

The fourth proportional to 669,180.06, 1,003,178.79 and 512,109.72 is: 767,712.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,180.06 : 1,003,178.79 = 512,109.72 : x
  2. Step 2: Convert to fraction form
    669,180.06/1,003,178.79 = 512,109.72/x
  3. Step 3: Cross multiply
    669,180.06x = 1,003,178.79 × 512,109.72
  4. Step 4: Simplify right side
    669,180.06x = 513,737,609,256.84
  5. Step 5: Solve for x
    x = 513,737,609,256.84/669,180.06
  6. Step 6: Final answer
    x = 767,712.07

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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.