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Finding the Fourth Proportional to 501,544.91, 692,131.84 and 286,689.58

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Solution

The fourth proportional to 501,544.91, 692,131.84 and 286,689.58 is: 395,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,544.91 : 692,131.84 = 286,689.58 : x
  2. Step 2: Convert to fraction form
    501,544.91/692,131.84 = 286,689.58/x
  3. Step 3: Cross multiply
    501,544.91x = 692,131.84 × 286,689.58
  4. Step 4: Simplify right side
    501,544.91x = 198,426,984,067.17
  5. Step 5: Solve for x
    x = 198,426,984,067.17/501,544.91
  6. Step 6: Final answer
    x = 395,631.54

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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.