Home / 1,247,675.72-1,871,318.36-406,221.80

Finding the Fourth Proportional to 1,247,675.72, 1,871,318.36 and 406,221.80

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Solution

The fourth proportional to 1,247,675.72, 1,871,318.36 and 406,221.80 is: 609,269.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,675.72 : 1,871,318.36 = 406,221.80 : x
  2. Step 2: Convert to fraction form
    1,247,675.72/1,871,318.36 = 406,221.80/x
  3. Step 3: Cross multiply
    1,247,675.72x = 1,871,318.36 × 406,221.80
  4. Step 4: Simplify right side
    1,247,675.72x = 760,170,312,572.25
  5. Step 5: Solve for x
    x = 760,170,312,572.25/1,247,675.72
  6. Step 6: Final answer
    x = 609,269.14

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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.