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Finding the Fourth Proportional to 482,920.80, 724,899.60 and 272,968.80

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Solution

The fourth proportional to 482,920.80, 724,899.60 and 272,968.80 is: 409,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,920.80 : 724,899.60 = 272,968.80 : x
  2. Step 2: Convert to fraction form
    482,920.80/724,899.60 = 272,968.80/x
  3. Step 3: Cross multiply
    482,920.80x = 724,899.60 × 272,968.80
  4. Step 4: Simplify right side
    482,920.80x = 197,874,973,932.48
  5. Step 5: Solve for x
    x = 197,874,973,932.48/482,920.80
  6. Step 6: Final answer
    x = 409,746.22

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1.5x scale

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.