Home / 918,212.32-1,377,266.64-287,051.68

Finding the Fourth Proportional to 918,212.32, 1,377,266.64 and 287,051.68

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Solution

The fourth proportional to 918,212.32, 1,377,266.64 and 287,051.68 is: 430,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,212.32 : 1,377,266.64 = 287,051.68 : x
  2. Step 2: Convert to fraction form
    918,212.32/1,377,266.64 = 287,051.68/x
  3. Step 3: Cross multiply
    918,212.32x = 1,377,266.64 × 287,051.68
  4. Step 4: Simplify right side
    918,212.32x = 395,346,702,819.96
  5. Step 5: Solve for x
    x = 395,346,702,819.96/918,212.32
  6. Step 6: Final answer
    x = 430,561.31

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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.