Home / 478,489.18-660,330.04-274,577.44

Finding the Fourth Proportional to 478,489.18, 660,330.04 and 274,577.44

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Solution

The fourth proportional to 478,489.18, 660,330.04 and 274,577.44 is: 378,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,489.18 : 660,330.04 = 274,577.44 : x
  2. Step 2: Convert to fraction form
    478,489.18/660,330.04 = 274,577.44/x
  3. Step 3: Cross multiply
    478,489.18x = 660,330.04 × 274,577.44
  4. Step 4: Simplify right side
    478,489.18x = 181,311,731,938.30
  5. Step 5: Solve for x
    x = 181,311,731,938.30/478,489.18
  6. Step 6: Final answer
    x = 378,925.46

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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.