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Finding the Fourth Proportional to 484,920.40, 669,369.72 and 416,664.40

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Solution

The fourth proportional to 484,920.40, 669,369.72 and 416,664.40 is: 575,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,920.40 : 669,369.72 = 416,664.40 : x
  2. Step 2: Convert to fraction form
    484,920.40/669,369.72 = 416,664.40/x
  3. Step 3: Cross multiply
    484,920.40x = 669,369.72 × 416,664.40
  4. Step 4: Simplify right side
    484,920.40x = 278,902,532,761.97
  5. Step 5: Solve for x
    x = 278,902,532,761.97/484,920.40
  6. Step 6: Final answer
    x = 575,151.16

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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.