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Finding the Fourth Proportional to 482,889.40, 724,334.10 and 304,430.20

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Solution

The fourth proportional to 482,889.40, 724,334.10 and 304,430.20 is: 456,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,889.40 : 724,334.10 = 304,430.20 : x
  2. Step 2: Convert to fraction form
    482,889.40/724,334.10 = 304,430.20/x
  3. Step 3: Cross multiply
    482,889.40x = 724,334.10 × 304,430.20
  4. Step 4: Simplify right side
    482,889.40x = 220,509,174,929.82
  5. Step 5: Solve for x
    x = 220,509,174,929.82/482,889.40
  6. Step 6: Final answer
    x = 456,645.30

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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.