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Finding the Fourth Proportional to 487,152.40, 730,728.60 and 449,827.60

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Solution

The fourth proportional to 487,152.40, 730,728.60 and 449,827.60 is: 674,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,152.40 : 730,728.60 = 449,827.60 : x
  2. Step 2: Convert to fraction form
    487,152.40/730,728.60 = 449,827.60/x
  3. Step 3: Cross multiply
    487,152.40x = 730,728.60 × 449,827.60
  4. Step 4: Simplify right side
    487,152.40x = 328,701,892,389.36
  5. Step 5: Solve for x
    x = 328,701,892,389.36/487,152.40
  6. Step 6: Final answer
    x = 674,741.40

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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.