Home / 785,329.22-1,083,725.63-479,916.80

Finding the Fourth Proportional to 785,329.22, 1,083,725.63 and 479,916.80

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Solution

The fourth proportional to 785,329.22, 1,083,725.63 and 479,916.80 is: 662,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,329.22 : 1,083,725.63 = 479,916.80 : x
  2. Step 2: Convert to fraction form
    785,329.22/1,083,725.63 = 479,916.80/x
  3. Step 3: Cross multiply
    785,329.22x = 1,083,725.63 × 479,916.80
  4. Step 4: Simplify right side
    785,329.22x = 520,098,134,473.03
  5. Step 5: Solve for x
    x = 520,098,134,473.03/785,329.22
  6. Step 6: Final answer
    x = 662,267.64

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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.