Home / 1,006,120.19-1,388,319.85-680,142.47

Finding the Fourth Proportional to 1,006,120.19, 1,388,319.85 and 680,142.47

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Solution

The fourth proportional to 1,006,120.19, 1,388,319.85 and 680,142.47 is: 938,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,120.19 : 1,388,319.85 = 680,142.47 : x
  2. Step 2: Convert to fraction form
    1,006,120.19/1,388,319.85 = 680,142.47/x
  3. Step 3: Cross multiply
    1,006,120.19x = 1,388,319.85 × 680,142.47
  4. Step 4: Simplify right side
    1,006,120.19x = 944,255,288,900.84
  5. Step 5: Solve for x
    x = 944,255,288,900.84/1,006,120.19
  6. Step 6: Final answer
    x = 938,511.42

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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.