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Finding the Fourth Proportional to 488,386.40, 732,579.60 and 299,429.60

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Solution

The fourth proportional to 488,386.40, 732,579.60 and 299,429.60 is: 449,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,386.40 : 732,579.60 = 299,429.60 : x
  2. Step 2: Convert to fraction form
    488,386.40/732,579.60 = 299,429.60/x
  3. Step 3: Cross multiply
    488,386.40x = 732,579.60 × 299,429.60
  4. Step 4: Simplify right side
    488,386.40x = 219,356,016,596.16
  5. Step 5: Solve for x
    x = 219,356,016,596.16/488,386.40
  6. Step 6: Final answer
    x = 449,144.40

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Similar ratio
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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.