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Finding the Fourth Proportional to 501,553.35, 692,143.58 and 286,698.02

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Solution

The fourth proportional to 501,553.35, 692,143.58 and 286,698.02 is: 395,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,553.35 : 692,143.58 = 286,698.02 : x
  2. Step 2: Convert to fraction form
    501,553.35/692,143.58 = 286,698.02/x
  3. Step 3: Cross multiply
    501,553.35x = 692,143.58 × 286,698.02
  4. Step 4: Simplify right side
    501,553.35x = 198,436,191,197.74
  5. Step 5: Solve for x
    x = 198,436,191,197.74/501,553.35
  6. Step 6: Final answer
    x = 395,643.24

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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.