Home / 885,688.92-1,222,349.07-498,516.12

Finding the Fourth Proportional to 885,688.92, 1,222,349.07 and 498,516.12

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Solution

The fourth proportional to 885,688.92, 1,222,349.07 and 498,516.12 is: 688,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,688.92 : 1,222,349.07 = 498,516.12 : x
  2. Step 2: Convert to fraction form
    885,688.92/1,222,349.07 = 498,516.12/x
  3. Step 3: Cross multiply
    885,688.92x = 1,222,349.07 × 498,516.12
  4. Step 4: Simplify right side
    885,688.92x = 609,360,715,662.01
  5. Step 5: Solve for x
    x = 609,360,715,662.01/885,688.92
  6. Step 6: Final answer
    x = 688,007.61

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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.