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Finding the Fourth Proportional to 501,573.57, 692,171.53 and 286,718.43

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Solution

The fourth proportional to 501,573.57, 692,171.53 and 286,718.43 is: 395,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,573.57 : 692,171.53 = 286,718.43 : x
  2. Step 2: Convert to fraction form
    501,573.57/692,171.53 = 286,718.43/x
  3. Step 3: Cross multiply
    501,573.57x = 692,171.53 × 286,718.43
  4. Step 4: Simplify right side
    501,573.57x = 198,458,336,251.15
  5. Step 5: Solve for x
    x = 198,458,336,251.15/501,573.57
  6. Step 6: Final answer
    x = 395,671.44

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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.