Home / 1,247,744.72-1,871,421.24-406,289.36

Finding the Fourth Proportional to 1,247,744.72, 1,871,421.24 and 406,289.36

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Solution

The fourth proportional to 1,247,744.72, 1,871,421.24 and 406,289.36 is: 609,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,744.72 : 1,871,421.24 = 406,289.36 : x
  2. Step 2: Convert to fraction form
    1,247,744.72/1,871,421.24 = 406,289.36/x
  3. Step 3: Cross multiply
    1,247,744.72x = 1,871,421.24 × 406,289.36
  4. Step 4: Simplify right side
    1,247,744.72x = 760,338,537,890.01
  5. Step 5: Solve for x
    x = 760,338,537,890.01/1,247,744.72
  6. Step 6: Final answer
    x = 609,370.27

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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.