Home / 880,705.65-1,215,353.22-518,152.86

Finding the Fourth Proportional to 880,705.65, 1,215,353.22 and 518,152.86

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Solution

The fourth proportional to 880,705.65, 1,215,353.22 and 518,152.86 is: 715,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,705.65 : 1,215,353.22 = 518,152.86 : x
  2. Step 2: Convert to fraction form
    880,705.65/1,215,353.22 = 518,152.86/x
  3. Step 3: Cross multiply
    880,705.65x = 1,215,353.22 × 518,152.86
  4. Step 4: Simplify right side
    880,705.65x = 629,738,740,352.56
  5. Step 5: Solve for x
    x = 629,738,740,352.56/880,705.65
  6. Step 6: Final answer
    x = 715,038.83

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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.