Home / 840,120.69-1,159,435.44-477,658.29

Finding the Fourth Proportional to 840,120.69, 1,159,435.44 and 477,658.29

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Solution

The fourth proportional to 840,120.69, 1,159,435.44 and 477,658.29 is: 659,207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,120.69 : 1,159,435.44 = 477,658.29 : x
  2. Step 2: Convert to fraction form
    840,120.69/1,159,435.44 = 477,658.29/x
  3. Step 3: Cross multiply
    840,120.69x = 1,159,435.44 × 477,658.29
  4. Step 4: Simplify right side
    840,120.69x = 553,813,949,635.80
  5. Step 5: Solve for x
    x = 553,813,949,635.80/840,120.69
  6. Step 6: Final answer
    x = 659,207.61

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Double scale
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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.