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Finding the Fourth Proportional to 604,979.72, 908,030.35 and 305,670.66

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Solution

The fourth proportional to 604,979.72, 908,030.35 and 305,670.66 is: 458,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,979.72 : 908,030.35 = 305,670.66 : x
  2. Step 2: Convert to fraction form
    604,979.72/908,030.35 = 305,670.66/x
  3. Step 3: Cross multiply
    604,979.72x = 908,030.35 × 305,670.66
  4. Step 4: Simplify right side
    604,979.72x = 277,558,236,384.53
  5. Step 5: Solve for x
    x = 277,558,236,384.53/604,979.72
  6. Step 6: Final answer
    x = 458,789.32

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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.