Home / 772,166.87-1,065,588.42-423,306.66

Finding the Fourth Proportional to 772,166.87, 1,065,588.42 and 423,306.66

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Solution

The fourth proportional to 772,166.87, 1,065,588.42 and 423,306.66 is: 584,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,166.87 : 1,065,588.42 = 423,306.66 : x
  2. Step 2: Convert to fraction form
    772,166.87/1,065,588.42 = 423,306.66/x
  3. Step 3: Cross multiply
    772,166.87x = 1,065,588.42 × 423,306.66
  4. Step 4: Simplify right side
    772,166.87x = 451,070,675,004.88
  5. Step 5: Solve for x
    x = 451,070,675,004.88/772,166.87
  6. Step 6: Final answer
    x = 584,162.17

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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.