Home / 778,834.46-1,074,841.72-439,295.42

Finding the Fourth Proportional to 778,834.46, 1,074,841.72 and 439,295.42

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Solution

The fourth proportional to 778,834.46, 1,074,841.72 and 439,295.42 is: 606,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,834.46 : 1,074,841.72 = 439,295.42 : x
  2. Step 2: Convert to fraction form
    778,834.46/1,074,841.72 = 439,295.42/x
  3. Step 3: Cross multiply
    778,834.46x = 1,074,841.72 × 439,295.42
  4. Step 4: Simplify right side
    778,834.46x = 472,173,044,820.92
  5. Step 5: Solve for x
    x = 472,173,044,820.92/778,834.46
  6. Step 6: Final answer
    x = 606,255.97

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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.