Home / 939,415.76-1,409,377.72-669,884.30

Finding the Fourth Proportional to 939,415.76, 1,409,377.72 and 669,884.30

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Solution

The fourth proportional to 939,415.76, 1,409,377.72 and 669,884.30 is: 1,005,007.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,415.76 : 1,409,377.72 = 669,884.30 : x
  2. Step 2: Convert to fraction form
    939,415.76/1,409,377.72 = 669,884.30/x
  3. Step 3: Cross multiply
    939,415.76x = 1,409,377.72 × 669,884.30
  4. Step 4: Simplify right side
    939,415.76x = 944,120,007,397.80
  5. Step 5: Solve for x
    x = 944,120,007,397.80/939,415.76
  6. Step 6: Final answer
    x = 1,005,007.63

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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.