Home / 482,971.40-724,457.10-304,512.20

Finding the Fourth Proportional to 482,971.40, 724,457.10 and 304,512.20

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Solution

The fourth proportional to 482,971.40, 724,457.10 and 304,512.20 is: 456,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,971.40 : 724,457.10 = 304,512.20 : x
  2. Step 2: Convert to fraction form
    482,971.40/724,457.10 = 304,512.20/x
  3. Step 3: Cross multiply
    482,971.40x = 724,457.10 × 304,512.20
  4. Step 4: Simplify right side
    482,971.40x = 220,606,025,326.62
  5. Step 5: Solve for x
    x = 220,606,025,326.62/482,971.40
  6. Step 6: Final answer
    x = 456,768.30

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Double scale
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Similar ratio
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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.