Home / 809,421.68-1,117,006.14-446,838.92

Finding the Fourth Proportional to 809,421.68, 1,117,006.14 and 446,838.92

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Solution

The fourth proportional to 809,421.68, 1,117,006.14 and 446,838.92 is: 616,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,421.68 : 1,117,006.14 = 446,838.92 : x
  2. Step 2: Convert to fraction form
    809,421.68/1,117,006.14 = 446,838.92/x
  3. Step 3: Cross multiply
    809,421.68x = 1,117,006.14 × 446,838.92
  4. Step 4: Simplify right side
    809,421.68x = 499,121,817,230.97
  5. Step 5: Solve for x
    x = 499,121,817,230.97/809,421.68
  6. Step 6: Final answer
    x = 616,640.04

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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.