Home / 778,847.67-1,074,808.04-439,313.49

Finding the Fourth Proportional to 778,847.67, 1,074,808.04 and 439,313.49

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Solution

The fourth proportional to 778,847.67, 1,074,808.04 and 439,313.49 is: 606,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,847.67 : 1,074,808.04 = 439,313.49 : x
  2. Step 2: Convert to fraction form
    778,847.67/1,074,808.04 = 439,313.49/x
  3. Step 3: Cross multiply
    778,847.67x = 1,074,808.04 × 439,313.49
  4. Step 4: Simplify right side
    778,847.67x = 472,177,668,935.89
  5. Step 5: Solve for x
    x = 472,177,668,935.89/778,847.67
  6. Step 6: Final answer
    x = 606,251.63

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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.