Home / 1,215,309.60-1,677,144.78-671,457.96

Finding the Fourth Proportional to 1,215,309.60, 1,677,144.78 and 671,457.96

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Solution

The fourth proportional to 1,215,309.60, 1,677,144.78 and 671,457.96 is: 926,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,309.60 : 1,677,144.78 = 671,457.96 : x
  2. Step 2: Convert to fraction form
    1,215,309.60/1,677,144.78 = 671,457.96/x
  3. Step 3: Cross multiply
    1,215,309.60x = 1,677,144.78 × 671,457.96
  4. Step 4: Simplify right side
    1,215,309.60x = 1,126,132,212,603.45
  5. Step 5: Solve for x
    x = 1,126,132,212,603.45/1,215,309.60
  6. Step 6: Final answer
    x = 926,621.67

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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.