Home / 926,420.92-1,278,169.41-518,457.94

Finding the Fourth Proportional to 926,420.92, 1,278,169.41 and 518,457.94

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Solution

The fourth proportional to 926,420.92, 1,278,169.41 and 518,457.94 is: 715,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,420.92 : 1,278,169.41 = 518,457.94 : x
  2. Step 2: Convert to fraction form
    926,420.92/1,278,169.41 = 518,457.94/x
  3. Step 3: Cross multiply
    926,420.92x = 1,278,169.41 × 518,457.94
  4. Step 4: Simplify right side
    926,420.92x = 662,677,079,279.62
  5. Step 5: Solve for x
    x = 662,677,079,279.62/926,420.92
  6. Step 6: Final answer
    x = 715,308.85

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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.