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Finding the Fourth Proportional to 659,814.32, 910,548.62 and 358,008.32

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Solution

The fourth proportional to 659,814.32, 910,548.62 and 358,008.32 is: 494,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,814.32 : 910,548.62 = 358,008.32 : x
  2. Step 2: Convert to fraction form
    659,814.32/910,548.62 = 358,008.32/x
  3. Step 3: Cross multiply
    659,814.32x = 910,548.62 × 358,008.32
  4. Step 4: Simplify right side
    659,814.32x = 325,983,975,381.73
  5. Step 5: Solve for x
    x = 325,983,975,381.73/659,814.32
  6. Step 6: Final answer
    x = 494,054.11

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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.