Home / 781,639.76-1,171,646.75-302,196.85

Finding the Fourth Proportional to 781,639.76, 1,171,646.75 and 302,196.85

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Solution

The fourth proportional to 781,639.76, 1,171,646.75 and 302,196.85 is: 452,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,639.76 : 1,171,646.75 = 302,196.85 : x
  2. Step 2: Convert to fraction form
    781,639.76/1,171,646.75 = 302,196.85/x
  3. Step 3: Cross multiply
    781,639.76x = 1,171,646.75 × 302,196.85
  4. Step 4: Simplify right side
    781,639.76x = 354,067,952,722.64
  5. Step 5: Solve for x
    x = 354,067,952,722.64/781,639.76
  6. Step 6: Final answer
    x = 452,980.99

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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.