Home / 688,449.56-1,032,318-309,043.60

Finding the Fourth Proportional to 688,449.56, 1,032,318 and 309,043.60

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Solution

The fourth proportional to 688,449.56, 1,032,318 and 309,043.60 is: 463,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,449.56 : 1,032,318 = 309,043.60 : x
  2. Step 2: Convert to fraction form
    688,449.56/1,032,318 = 309,043.60/x
  3. Step 3: Cross multiply
    688,449.56x = 1,032,318 × 309,043.60
  4. Step 4: Simplify right side
    688,449.56x = 319,031,271,064.80
  5. Step 5: Solve for x
    x = 319,031,271,064.80/688,449.56
  6. Step 6: Final answer
    x = 463,405.44

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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.