Home / 1,247,674.72-1,871,316.86-406,220.80

Finding the Fourth Proportional to 1,247,674.72, 1,871,316.86 and 406,220.80

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Solution

The fourth proportional to 1,247,674.72, 1,871,316.86 and 406,220.80 is: 609,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,674.72 : 1,871,316.86 = 406,220.80 : x
  2. Step 2: Convert to fraction form
    1,247,674.72/1,871,316.86 = 406,220.80/x
  3. Step 3: Cross multiply
    1,247,674.72x = 1,871,316.86 × 406,220.80
  4. Step 4: Simplify right side
    1,247,674.72x = 760,167,831,922.69
  5. Step 5: Solve for x
    x = 760,167,831,922.69/1,247,674.72
  6. Step 6: Final answer
    x = 609,267.64

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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.