Home / 790,651.68-1,186,166.40-258,173.76

Finding the Fourth Proportional to 790,651.68, 1,186,166.40 and 258,173.76

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Solution

The fourth proportional to 790,651.68, 1,186,166.40 and 258,173.76 is: 387,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,651.68 : 1,186,166.40 = 258,173.76 : x
  2. Step 2: Convert to fraction form
    790,651.68/1,186,166.40 = 258,173.76/x
  3. Step 3: Cross multiply
    790,651.68x = 1,186,166.40 × 258,173.76
  4. Step 4: Simplify right side
    790,651.68x = 306,237,039,473.66
  5. Step 5: Solve for x
    x = 306,237,039,473.66/790,651.68
  6. Step 6: Final answer
    x = 387,322.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.