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Finding the Fourth Proportional to 485,430.60, 727,886.70 and 204,630.60

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Solution

The fourth proportional to 485,430.60, 727,886.70 and 204,630.60 is: 306,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,430.60 : 727,886.70 = 204,630.60 : x
  2. Step 2: Convert to fraction form
    485,430.60/727,886.70 = 204,630.60/x
  3. Step 3: Cross multiply
    485,430.60x = 727,886.70 × 204,630.60
  4. Step 4: Simplify right side
    485,430.60x = 148,947,892,153.02
  5. Step 5: Solve for x
    x = 148,947,892,153.02/485,430.60
  6. Step 6: Final answer
    x = 306,836.64

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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.