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Finding the Fourth Proportional to 482,801.09, 666,221.46 and 286,533.71

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Solution

The fourth proportional to 482,801.09, 666,221.46 and 286,533.71 is: 395,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,801.09 : 666,221.46 = 286,533.71 : x
  2. Step 2: Convert to fraction form
    482,801.09/666,221.46 = 286,533.71/x
  3. Step 3: Cross multiply
    482,801.09x = 666,221.46 × 286,533.71
  4. Step 4: Simplify right side
    482,801.09x = 190,894,903,284.31
  5. Step 5: Solve for x
    x = 190,894,903,284.31/482,801.09
  6. Step 6: Final answer
    x = 395,390.38

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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.