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Finding the Fourth Proportional to 660,013.62, 989,861.86 and 304,686.26

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Solution

The fourth proportional to 660,013.62, 989,861.86 and 304,686.26 is: 456,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,013.62 : 989,861.86 = 304,686.26 : x
  2. Step 2: Convert to fraction form
    660,013.62/989,861.86 = 304,686.26/x
  3. Step 3: Cross multiply
    660,013.62x = 989,861.86 × 304,686.26
  4. Step 4: Simplify right side
    660,013.62x = 301,597,308,040.04
  5. Step 5: Solve for x
    x = 301,597,308,040.04/660,013.62
  6. Step 6: Final answer
    x = 456,956.19

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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.