Home / 816,139.92-1,224,417.24-479,465.22

Finding the Fourth Proportional to 816,139.92, 1,224,417.24 and 479,465.22

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Solution

The fourth proportional to 816,139.92, 1,224,417.24 and 479,465.22 is: 719,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,139.92 : 1,224,417.24 = 479,465.22 : x
  2. Step 2: Convert to fraction form
    816,139.92/1,224,417.24 = 479,465.22/x
  3. Step 3: Cross multiply
    816,139.92x = 1,224,417.24 × 479,465.22
  4. Step 4: Simplify right side
    816,139.92x = 587,065,481,348.39
  5. Step 5: Solve for x
    x = 587,065,481,348.39/816,139.92
  6. Step 6: Final answer
    x = 719,319.65

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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.