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Finding the Fourth Proportional to 534,705.80, 801,410.70 and 309,633.80

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Solution

The fourth proportional to 534,705.80, 801,410.70 and 309,633.80 is: 464,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,705.80 : 801,410.70 = 309,633.80 : x
  2. Step 2: Convert to fraction form
    534,705.80/801,410.70 = 309,633.80/x
  3. Step 3: Cross multiply
    534,705.80x = 801,410.70 × 309,633.80
  4. Step 4: Simplify right side
    534,705.80x = 248,143,840,401.66
  5. Step 5: Solve for x
    x = 248,143,840,401.66/534,705.80
  6. Step 6: Final answer
    x = 464,075.46

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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.