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Finding the Fourth Proportional to 539,563.60, 809,345.40 and 510,533.20

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Solution

The fourth proportional to 539,563.60, 809,345.40 and 510,533.20 is: 765,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,563.60 : 809,345.40 = 510,533.20 : x
  2. Step 2: Convert to fraction form
    539,563.60/809,345.40 = 510,533.20/x
  3. Step 3: Cross multiply
    539,563.60x = 809,345.40 × 510,533.20
  4. Step 4: Simplify right side
    539,563.60x = 413,197,696,967.28
  5. Step 5: Solve for x
    x = 413,197,696,967.28/539,563.60
  6. Step 6: Final answer
    x = 765,799.80

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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.