Home / 785,207.04-1,083,309.78-513,434

Finding the Fourth Proportional to 785,207.04, 1,083,309.78 and 513,434

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Solution

The fourth proportional to 785,207.04, 1,083,309.78 and 513,434 is: 708,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,207.04 : 1,083,309.78 = 513,434 : x
  2. Step 2: Convert to fraction form
    785,207.04/1,083,309.78 = 513,434/x
  3. Step 3: Cross multiply
    785,207.04x = 1,083,309.78 × 513,434
  4. Step 4: Simplify right side
    785,207.04x = 556,208,073,584.52
  5. Step 5: Solve for x
    x = 556,208,073,584.52/785,207.04
  6. Step 6: Final answer
    x = 708,358.49

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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.