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Finding the Fourth Proportional to 360,784.80, 542,489.40 and 352,911.60

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Solution

The fourth proportional to 360,784.80, 542,489.40 and 352,911.60 is: 530,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,784.80 : 542,489.40 = 352,911.60 : x
  2. Step 2: Convert to fraction form
    360,784.80/542,489.40 = 352,911.60/x
  3. Step 3: Cross multiply
    360,784.80x = 542,489.40 × 352,911.60
  4. Step 4: Simplify right side
    360,784.80x = 191,450,802,137.04
  5. Step 5: Solve for x
    x = 191,450,802,137.04/360,784.80
  6. Step 6: Final answer
    x = 530,650.96

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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.