Home / 785,348.79-1,083,752.49-479,936.28

Finding the Fourth Proportional to 785,348.79, 1,083,752.49 and 479,936.28

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Solution

The fourth proportional to 785,348.79, 1,083,752.49 and 479,936.28 is: 662,294.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,348.79 : 1,083,752.49 = 479,936.28 : x
  2. Step 2: Convert to fraction form
    785,348.79/1,083,752.49 = 479,936.28/x
  3. Step 3: Cross multiply
    785,348.79x = 1,083,752.49 × 479,936.28
  4. Step 4: Simplify right side
    785,348.79x = 520,132,138,491.34
  5. Step 5: Solve for x
    x = 520,132,138,491.34/785,348.79
  6. Step 6: Final answer
    x = 662,294.44

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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.