Home / 689,904.84-1,034,857.54-310,382.36

Finding the Fourth Proportional to 689,904.84, 1,034,857.54 and 310,382.36

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Solution

The fourth proportional to 689,904.84, 1,034,857.54 and 310,382.36 is: 465,573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,904.84 : 1,034,857.54 = 310,382.36 : x
  2. Step 2: Convert to fraction form
    689,904.84/1,034,857.54 = 310,382.36/x
  3. Step 3: Cross multiply
    689,904.84x = 1,034,857.54 × 310,382.36
  4. Step 4: Simplify right side
    689,904.84x = 321,201,525,528.99
  5. Step 5: Solve for x
    x = 321,201,525,528.99/689,904.84
  6. Step 6: Final answer
    x = 465,573.67

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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.