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Finding the Fourth Proportional to 485,577.60, 729,921.60 and 346,300.80

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Solution

The fourth proportional to 485,577.60, 729,921.60 and 346,300.80 is: 520,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,577.60 : 729,921.60 = 346,300.80 : x
  2. Step 2: Convert to fraction form
    485,577.60/729,921.60 = 346,300.80/x
  3. Step 3: Cross multiply
    485,577.60x = 729,921.60 × 346,300.80
  4. Step 4: Simplify right side
    485,577.60x = 252,772,434,017.28
  5. Step 5: Solve for x
    x = 252,772,434,017.28/485,577.60
  6. Step 6: Final answer
    x = 520,560.33

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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.