Home / 939,338.46-1,409,176.17-440,689.50

Finding the Fourth Proportional to 939,338.46, 1,409,176.17 and 440,689.50

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Solution

The fourth proportional to 939,338.46, 1,409,176.17 and 440,689.50 is: 661,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,338.46 : 1,409,176.17 = 440,689.50 : x
  2. Step 2: Convert to fraction form
    939,338.46/1,409,176.17 = 440,689.50/x
  3. Step 3: Cross multiply
    939,338.46x = 1,409,176.17 × 440,689.50
  4. Step 4: Simplify right side
    939,338.46x = 621,009,141,769.22
  5. Step 5: Solve for x
    x = 621,009,141,769.22/939,338.46
  6. Step 6: Final answer
    x = 661,113.29

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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.