Home / 1,296,421.11-1,788,847.14-723,459.90

Finding the Fourth Proportional to 1,296,421.11, 1,788,847.14 and 723,459.90

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Solution

The fourth proportional to 1,296,421.11, 1,788,847.14 and 723,459.90 is: 998,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,421.11 : 1,788,847.14 = 723,459.90 : x
  2. Step 2: Convert to fraction form
    1,296,421.11/1,788,847.14 = 723,459.90/x
  3. Step 3: Cross multiply
    1,296,421.11x = 1,788,847.14 × 723,459.90
  4. Step 4: Simplify right side
    1,296,421.11x = 1,294,159,173,019.69
  5. Step 5: Solve for x
    x = 1,294,159,173,019.69/1,296,421.11
  6. Step 6: Final answer
    x = 998,255.25

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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.