Home / 579,341.60-869,077.20-179,979.20

Finding the Fourth Proportional to 579,341.60, 869,077.20 and 179,979.20

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Solution

The fourth proportional to 579,341.60, 869,077.20 and 179,979.20 is: 269,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,341.60 : 869,077.20 = 179,979.20 : x
  2. Step 2: Convert to fraction form
    579,341.60/869,077.20 = 179,979.20/x
  3. Step 3: Cross multiply
    579,341.60x = 869,077.20 × 179,979.20
  4. Step 4: Simplify right side
    579,341.60x = 156,415,819,194.24
  5. Step 5: Solve for x
    x = 156,415,819,194.24/579,341.60
  6. Step 6: Final answer
    x = 269,988.93

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Double scale
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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.