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Finding the Fourth Proportional to 655,931.60, 983,609.40 and 300,827.60

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Solution

The fourth proportional to 655,931.60, 983,609.40 and 300,827.60 is: 451,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,931.60 : 983,609.40 = 300,827.60 : x
  2. Step 2: Convert to fraction form
    655,931.60/983,609.40 = 300,827.60/x
  3. Step 3: Cross multiply
    655,931.60x = 983,609.40 × 300,827.60
  4. Step 4: Simplify right side
    655,931.60x = 295,896,855,139.44
  5. Step 5: Solve for x
    x = 295,896,855,139.44/655,931.60
  6. Step 6: Final answer
    x = 451,109.32

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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.