Home / 786,736.60-1,179,230.10-432,005.20

Finding the Fourth Proportional to 786,736.60, 1,179,230.10 and 432,005.20

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Solution

The fourth proportional to 786,736.60, 1,179,230.10 and 432,005.20 is: 647,527.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,736.60 : 1,179,230.10 = 432,005.20 : x
  2. Step 2: Convert to fraction form
    786,736.60/1,179,230.10 = 432,005.20/x
  3. Step 3: Cross multiply
    786,736.60x = 1,179,230.10 × 432,005.20
  4. Step 4: Simplify right side
    786,736.60x = 509,433,535,196.52
  5. Step 5: Solve for x
    x = 509,433,535,196.52/786,736.60
  6. Step 6: Final answer
    x = 647,527.44

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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.