Home / 489,040.20-733,560.30-423,430.20

Finding the Fourth Proportional to 489,040.20, 733,560.30 and 423,430.20

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Solution

The fourth proportional to 489,040.20, 733,560.30 and 423,430.20 is: 635,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,040.20 : 733,560.30 = 423,430.20 : x
  2. Step 2: Convert to fraction form
    489,040.20/733,560.30 = 423,430.20/x
  3. Step 3: Cross multiply
    489,040.20x = 733,560.30 × 423,430.20
  4. Step 4: Simplify right side
    489,040.20x = 310,611,584,541.06
  5. Step 5: Solve for x
    x = 310,611,584,541.06/489,040.20
  6. Step 6: Final answer
    x = 635,145.30

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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.