Home / 784,825.60-1,083,006.08-427,121.92

Finding the Fourth Proportional to 784,825.60, 1,083,006.08 and 427,121.92

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Solution

The fourth proportional to 784,825.60, 1,083,006.08 and 427,121.92 is: 589,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,825.60 : 1,083,006.08 = 427,121.92 : x
  2. Step 2: Convert to fraction form
    784,825.60/1,083,006.08 = 427,121.92/x
  3. Step 3: Cross multiply
    784,825.60x = 1,083,006.08 × 427,121.92
  4. Step 4: Simplify right side
    784,825.60x = 462,575,636,261.27
  5. Step 5: Solve for x
    x = 462,575,636,261.27/784,825.60
  6. Step 6: Final answer
    x = 589,399.27

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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.