Home / 745,653.72-1,029,118.99-439,763.73

Finding the Fourth Proportional to 745,653.72, 1,029,118.99 and 439,763.73

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Solution

The fourth proportional to 745,653.72, 1,029,118.99 and 439,763.73 is: 606,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,653.72 : 1,029,118.99 = 439,763.73 : x
  2. Step 2: Convert to fraction form
    745,653.72/1,029,118.99 = 439,763.73/x
  3. Step 3: Cross multiply
    745,653.72x = 1,029,118.99 × 439,763.73
  4. Step 4: Simplify right side
    745,653.72x = 452,569,205,656.23
  5. Step 5: Solve for x
    x = 452,569,205,656.23/745,653.72
  6. Step 6: Final answer
    x = 606,942.87

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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.