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Finding the Fourth Proportional to 535,612.80, 803,937.60 and 325,660.80

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Solution

The fourth proportional to 535,612.80, 803,937.60 and 325,660.80 is: 488,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,612.80 : 803,937.60 = 325,660.80 : x
  2. Step 2: Convert to fraction form
    535,612.80/803,937.60 = 325,660.80/x
  3. Step 3: Cross multiply
    535,612.80x = 803,937.60 × 325,660.80
  4. Step 4: Simplify right side
    535,612.80x = 261,810,961,966.08
  5. Step 5: Solve for x
    x = 261,810,961,966.08/535,612.80
  6. Step 6: Final answer
    x = 488,806.40

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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.