Home / 851,511.72-1,277,366.40-282,943.56

Finding the Fourth Proportional to 851,511.72, 1,277,366.40 and 282,943.56

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Solution

The fourth proportional to 851,511.72, 1,277,366.40 and 282,943.56 is: 424,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,511.72 : 1,277,366.40 = 282,943.56 : x
  2. Step 2: Convert to fraction form
    851,511.72/1,277,366.40 = 282,943.56/x
  3. Step 3: Cross multiply
    851,511.72x = 1,277,366.40 × 282,943.56
  4. Step 4: Simplify right side
    851,511.72x = 361,422,596,640.38
  5. Step 5: Solve for x
    x = 361,422,596,640.38/851,511.72
  6. Step 6: Final answer
    x = 424,448.18

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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.