Home / 1,298,421.22-1,791,914.01-717,631.88

Finding the Fourth Proportional to 1,298,421.22, 1,791,914.01 and 717,631.88

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Solution

The fourth proportional to 1,298,421.22, 1,791,914.01 and 717,631.88 is: 990,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,421.22 : 1,791,914.01 = 717,631.88 : x
  2. Step 2: Convert to fraction form
    1,298,421.22/1,791,914.01 = 717,631.88/x
  3. Step 3: Cross multiply
    1,298,421.22x = 1,791,914.01 × 717,631.88
  4. Step 4: Simplify right side
    1,298,421.22x = 1,285,934,624,274.42
  5. Step 5: Solve for x
    x = 1,285,934,624,274.42/1,298,421.22
  6. Step 6: Final answer
    x = 990,383.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.