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Finding the Fourth Proportional to 501,522.62, 692,115.57 and 286,691.18

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Solution

The fourth proportional to 501,522.62, 692,115.57 and 286,691.18 is: 395,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,522.62 : 692,115.57 = 286,691.18 : x
  2. Step 2: Convert to fraction form
    501,522.62/692,115.57 = 286,691.18/x
  3. Step 3: Cross multiply
    501,522.62x = 692,115.57 × 286,691.18
  4. Step 4: Simplify right side
    501,522.62x = 198,423,425,999.10
  5. Step 5: Solve for x
    x = 198,423,425,999.10/501,522.62
  6. Step 6: Final answer
    x = 395,642.03

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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.