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Finding the Fourth Proportional to 659,457.60, 988,894.80 and 304,288.80

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Solution

The fourth proportional to 659,457.60, 988,894.80 and 304,288.80 is: 456,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,457.60 : 988,894.80 = 304,288.80 : x
  2. Step 2: Convert to fraction form
    659,457.60/988,894.80 = 304,288.80/x
  3. Step 3: Cross multiply
    659,457.60x = 988,894.80 × 304,288.80
  4. Step 4: Simplify right side
    659,457.60x = 300,909,612,018.24
  5. Step 5: Solve for x
    x = 300,909,612,018.24/659,457.60
  6. Step 6: Final answer
    x = 456,298.65

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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.