Home / 808,798.69-1,212,214.15-572,209.57

Finding the Fourth Proportional to 808,798.69, 1,212,214.15 and 572,209.57

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Solution

The fourth proportional to 808,798.69, 1,212,214.15 and 572,209.57 is: 857,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,798.69 : 1,212,214.15 = 572,209.57 : x
  2. Step 2: Convert to fraction form
    808,798.69/1,212,214.15 = 572,209.57/x
  3. Step 3: Cross multiply
    808,798.69x = 1,212,214.15 × 572,209.57
  4. Step 4: Simplify right side
    808,798.69x = 693,640,537,519.42
  5. Step 5: Solve for x
    x = 693,640,537,519.42/808,798.69
  6. Step 6: Final answer
    x = 857,618.28

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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.