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Finding the Fourth Proportional to 501,575.07, 692,173.61 and 286,719.93

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Solution

The fourth proportional to 501,575.07, 692,173.61 and 286,719.93 is: 395,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,575.07 : 692,173.61 = 286,719.93 : x
  2. Step 2: Convert to fraction form
    501,575.07/692,173.61 = 286,719.93/x
  3. Step 3: Cross multiply
    501,575.07x = 692,173.61 × 286,719.93
  4. Step 4: Simplify right side
    501,575.07x = 198,459,967,573.45
  5. Step 5: Solve for x
    x = 198,459,967,573.45/501,575.07
  6. Step 6: Final answer
    x = 395,673.51

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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.