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Finding the Fourth Proportional to 578,670.09, 867,177.99 and 325,419

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Solution

The fourth proportional to 578,670.09, 867,177.99 and 325,419 is: 487,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,670.09 : 867,177.99 = 325,419 : x
  2. Step 2: Convert to fraction form
    578,670.09/867,177.99 = 325,419/x
  3. Step 3: Cross multiply
    578,670.09x = 867,177.99 × 325,419
  4. Step 4: Simplify right side
    578,670.09x = 282,196,194,327.81
  5. Step 5: Solve for x
    x = 282,196,194,327.81/578,670.09
  6. Step 6: Final answer
    x = 487,663.35

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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.