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Finding the Fourth Proportional to 488,434.40, 732,651.60 and 346,716.80

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Solution

The fourth proportional to 488,434.40, 732,651.60 and 346,716.80 is: 520,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,434.40 : 732,651.60 = 346,716.80 : x
  2. Step 2: Convert to fraction form
    488,434.40/732,651.60 = 346,716.80/x
  3. Step 3: Cross multiply
    488,434.40x = 732,651.60 × 346,716.80
  4. Step 4: Simplify right side
    488,434.40x = 254,022,618,266.88
  5. Step 5: Solve for x
    x = 254,022,618,266.88/488,434.40
  6. Step 6: Final answer
    x = 520,075.20

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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.