Home / 672,003.45-1,008,005.18-423,171.45

Finding the Fourth Proportional to 672,003.45, 1,008,005.18 and 423,171.45

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Solution

The fourth proportional to 672,003.45, 1,008,005.18 and 423,171.45 is: 634,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,003.45 : 1,008,005.18 = 423,171.45 : x
  2. Step 2: Convert to fraction form
    672,003.45/1,008,005.18 = 423,171.45/x
  3. Step 3: Cross multiply
    672,003.45x = 1,008,005.18 × 423,171.45
  4. Step 4: Simplify right side
    672,003.45x = 426,559,011,512.25
  5. Step 5: Solve for x
    x = 426,559,011,512.25/672,003.45
  6. Step 6: Final answer
    x = 634,757.18

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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.