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Finding the Fourth Proportional to 665,162.54, 917,922.75 and 363,358.70

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Solution

The fourth proportional to 665,162.54, 917,922.75 and 363,358.70 is: 501,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,162.54 : 917,922.75 = 363,358.70 : x
  2. Step 2: Convert to fraction form
    665,162.54/917,922.75 = 363,358.70/x
  3. Step 3: Cross multiply
    665,162.54x = 917,922.75 × 363,358.70
  4. Step 4: Simplify right side
    665,162.54x = 333,535,217,140.43
  5. Step 5: Solve for x
    x = 333,535,217,140.43/665,162.54
  6. Step 6: Final answer
    x = 501,434.16

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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.