Home / 708,465.90-977,667.39-386,163.66

Finding the Fourth Proportional to 708,465.90, 977,667.39 and 386,163.66

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Solution

The fourth proportional to 708,465.90, 977,667.39 and 386,163.66 is: 532,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,465.90 : 977,667.39 = 386,163.66 : x
  2. Step 2: Convert to fraction form
    708,465.90/977,667.39 = 386,163.66/x
  3. Step 3: Cross multiply
    708,465.90x = 977,667.39 × 386,163.66
  4. Step 4: Simplify right side
    708,465.90x = 377,539,617,585.05
  5. Step 5: Solve for x
    x = 377,539,617,585.05/708,465.90
  6. Step 6: Final answer
    x = 532,897.37

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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.