Home / 458,536.10-688,322.55-353,819.30

Finding the Fourth Proportional to 458,536.10, 688,322.55 and 353,819.30

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Solution

The fourth proportional to 458,536.10, 688,322.55 and 353,819.30 is: 531,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,536.10 : 688,322.55 = 353,819.30 : x
  2. Step 2: Convert to fraction form
    458,536.10/688,322.55 = 353,819.30/x
  3. Step 3: Cross multiply
    458,536.10x = 688,322.55 × 353,819.30
  4. Step 4: Simplify right side
    458,536.10x = 243,541,802,815.22
  5. Step 5: Solve for x
    x = 243,541,802,815.22/458,536.10
  6. Step 6: Final answer
    x = 531,128.96

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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.