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Finding the Fourth Proportional to 478,325.25, 660,040.93 and 294,534.35

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Solution

The fourth proportional to 478,325.25, 660,040.93 and 294,534.35 is: 406,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,325.25 : 660,040.93 = 294,534.35 : x
  2. Step 2: Convert to fraction form
    478,325.25/660,040.93 = 294,534.35/x
  3. Step 3: Cross multiply
    478,325.25x = 660,040.93 × 294,534.35
  4. Step 4: Simplify right side
    478,325.25x = 194,404,726,862.05
  5. Step 5: Solve for x
    x = 194,404,726,862.05/478,325.25
  6. Step 6: Final answer
    x = 406,427.90

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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.