Home / 672,158.05-1,008,657.39-272,798.78

Finding the Fourth Proportional to 672,158.05, 1,008,657.39 and 272,798.78

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Solution

The fourth proportional to 672,158.05, 1,008,657.39 and 272,798.78 is: 409,368.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,158.05 : 1,008,657.39 = 272,798.78 : x
  2. Step 2: Convert to fraction form
    672,158.05/1,008,657.39 = 272,798.78/x
  3. Step 3: Cross multiply
    672,158.05x = 1,008,657.39 × 272,798.78
  4. Step 4: Simplify right side
    672,158.05x = 275,160,500,880.99
  5. Step 5: Solve for x
    x = 275,160,500,880.99/672,158.05
  6. Step 6: Final answer
    x = 409,368.75

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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.