Home / 670,809.06-1,006,213.59-172,173.06

Finding the Fourth Proportional to 670,809.06, 1,006,213.59 and 172,173.06

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Solution

The fourth proportional to 670,809.06, 1,006,213.59 and 172,173.06 is: 258,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,809.06 : 1,006,213.59 = 172,173.06 : x
  2. Step 2: Convert to fraction form
    670,809.06/1,006,213.59 = 172,173.06/x
  3. Step 3: Cross multiply
    670,809.06x = 1,006,213.59 × 172,173.06
  4. Step 4: Simplify right side
    670,809.06x = 173,242,872,803.89
  5. Step 5: Solve for x
    x = 173,242,872,803.89/670,809.06
  6. Step 6: Final answer
    x = 258,259.59

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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.