Home / 708,460.36-977,645.88-386,163.36

Finding the Fourth Proportional to 708,460.36, 977,645.88 and 386,163.36

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Solution

The fourth proportional to 708,460.36, 977,645.88 and 386,163.36 is: 532,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,460.36 : 977,645.88 = 386,163.36 : x
  2. Step 2: Convert to fraction form
    708,460.36/977,645.88 = 386,163.36/x
  3. Step 3: Cross multiply
    708,460.36x = 977,645.88 × 386,163.36
  4. Step 4: Simplify right side
    708,460.36x = 377,531,017,910.96
  5. Step 5: Solve for x
    x = 377,531,017,910.96/708,460.36
  6. Step 6: Final answer
    x = 532,889.40

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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.