Home / 489,962.40-734,943.60-322,000.80

Finding the Fourth Proportional to 489,962.40, 734,943.60 and 322,000.80

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Solution

The fourth proportional to 489,962.40, 734,943.60 and 322,000.80 is: 483,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,962.40 : 734,943.60 = 322,000.80 : x
  2. Step 2: Convert to fraction form
    489,962.40/734,943.60 = 322,000.80/x
  3. Step 3: Cross multiply
    489,962.40x = 734,943.60 × 322,000.80
  4. Step 4: Simplify right side
    489,962.40x = 236,652,427,154.88
  5. Step 5: Solve for x
    x = 236,652,427,154.88/489,962.40
  6. Step 6: Final answer
    x = 483,001.20

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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.