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Finding the Fourth Proportional to 478,334.91, 660,094.29 and 263,495.01

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Solution

The fourth proportional to 478,334.91, 660,094.29 and 263,495.01 is: 363,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334.91 : 660,094.29 = 263,495.01 : x
  2. Step 2: Convert to fraction form
    478,334.91/660,094.29 = 263,495.01/x
  3. Step 3: Cross multiply
    478,334.91x = 660,094.29 × 263,495.01
  4. Step 4: Simplify right side
    478,334.91x = 173,931,551,544.49
  5. Step 5: Solve for x
    x = 173,931,551,544.49/478,334.91
  6. Step 6: Final answer
    x = 363,618.77

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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.