Home / 478,914.28-717,901.98-407,997.16

Finding the Fourth Proportional to 478,914.28, 717,901.98 and 407,997.16

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Solution

The fourth proportional to 478,914.28, 717,901.98 and 407,997.16 is: 611,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,914.28 : 717,901.98 = 407,997.16 : x
  2. Step 2: Convert to fraction form
    478,914.28/717,901.98 = 407,997.16/x
  3. Step 3: Cross multiply
    478,914.28x = 717,901.98 × 407,997.16
  4. Step 4: Simplify right side
    478,914.28x = 292,901,968,998.38
  5. Step 5: Solve for x
    x = 292,901,968,998.38/478,914.28
  6. Step 6: Final answer
    x = 611,595.81

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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.