Home / 1,312,661.22-1,811,461.71-731,877.45

Finding the Fourth Proportional to 1,312,661.22, 1,811,461.71 and 731,877.45

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Solution

The fourth proportional to 1,312,661.22, 1,811,461.71 and 731,877.45 is: 1,009,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,661.22 : 1,811,461.71 = 731,877.45 : x
  2. Step 2: Convert to fraction form
    1,312,661.22/1,811,461.71 = 731,877.45/x
  3. Step 3: Cross multiply
    1,312,661.22x = 1,811,461.71 × 731,877.45
  4. Step 4: Simplify right side
    1,312,661.22x = 1,325,767,977,087.44
  5. Step 5: Solve for x
    x = 1,325,767,977,087.44/1,312,661.22
  6. Step 6: Final answer
    x = 1,009,984.87

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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.