Home / 708,682.12-977,985.72-386,397.56

Finding the Fourth Proportional to 708,682.12, 977,985.72 and 386,397.56

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Solution

The fourth proportional to 708,682.12, 977,985.72 and 386,397.56 is: 533,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,682.12 : 977,985.72 = 386,397.56 : x
  2. Step 2: Convert to fraction form
    708,682.12/977,985.72 = 386,397.56/x
  3. Step 3: Cross multiply
    708,682.12x = 977,985.72 × 386,397.56
  4. Step 4: Simplify right side
    708,682.12x = 377,891,295,922.84
  5. Step 5: Solve for x
    x = 377,891,295,922.84/708,682.12
  6. Step 6: Final answer
    x = 533,231.03

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1.5x scale

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.