Home / 708,487.11-977,692.77-386,203.50

Finding the Fourth Proportional to 708,487.11, 977,692.77 and 386,203.50

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Solution

The fourth proportional to 708,487.11, 977,692.77 and 386,203.50 is: 532,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,487.11 : 977,692.77 = 386,203.50 : x
  2. Step 2: Convert to fraction form
    708,487.11/977,692.77 = 386,203.50/x
  3. Step 3: Cross multiply
    708,487.11x = 977,692.77 × 386,203.50
  4. Step 4: Simplify right side
    708,487.11x = 377,588,369,698.70
  5. Step 5: Solve for x
    x = 377,588,369,698.70/708,487.11
  6. Step 6: Final answer
    x = 532,950.23

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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.