Home / 1,185,621.85-1,778,715.71-386,904.88

Finding the Fourth Proportional to 1,185,621.85, 1,778,715.71 and 386,904.88

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Solution

The fourth proportional to 1,185,621.85, 1,778,715.71 and 386,904.88 is: 580,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,621.85 : 1,778,715.71 = 386,904.88 : x
  2. Step 2: Convert to fraction form
    1,185,621.85/1,778,715.71 = 386,904.88/x
  3. Step 3: Cross multiply
    1,185,621.85x = 1,778,715.71 × 386,904.88
  4. Step 4: Simplify right side
    1,185,621.85x = 688,193,786,397.14
  5. Step 5: Solve for x
    x = 688,193,786,397.14/1,185,621.85
  6. Step 6: Final answer
    x = 580,449.65

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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.