Home / 689,875.43-1,034,813.41-310,352.85

Finding the Fourth Proportional to 689,875.43, 1,034,813.41 and 310,352.85

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Solution

The fourth proportional to 689,875.43, 1,034,813.41 and 310,352.85 is: 465,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,875.43 : 1,034,813.41 = 310,352.85 : x
  2. Step 2: Convert to fraction form
    689,875.43/1,034,813.41 = 310,352.85/x
  3. Step 3: Cross multiply
    689,875.43x = 1,034,813.41 × 310,352.85
  4. Step 4: Simplify right side
    689,875.43x = 321,157,290,235.84
  5. Step 5: Solve for x
    x = 321,157,290,235.84/689,875.43
  6. Step 6: Final answer
    x = 465,529.40

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Similar ratio
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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.