Home / 485,584.40-670,109.28-270,737.84

Finding the Fourth Proportional to 485,584.40, 670,109.28 and 270,737.84

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Solution

The fourth proportional to 485,584.40, 670,109.28 and 270,737.84 is: 373,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,584.40 : 670,109.28 = 270,737.84 : x
  2. Step 2: Convert to fraction form
    485,584.40/670,109.28 = 270,737.84/x
  3. Step 3: Cross multiply
    485,584.40x = 670,109.28 × 270,737.84
  4. Step 4: Simplify right side
    485,584.40x = 181,423,939,031.16
  5. Step 5: Solve for x
    x = 181,423,939,031.16/485,584.40
  6. Step 6: Final answer
    x = 373,619.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.