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Finding the Fourth Proportional to 501,185.44, 691,572.79 and 286,339.34

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Solution

The fourth proportional to 501,185.44, 691,572.79 and 286,339.34 is: 395,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,185.44 : 691,572.79 = 286,339.34 : x
  2. Step 2: Convert to fraction form
    501,185.44/691,572.79 = 286,339.34/x
  3. Step 3: Cross multiply
    501,185.44x = 691,572.79 × 286,339.34
  4. Step 4: Simplify right side
    501,185.44x = 198,024,495,744.02
  5. Step 5: Solve for x
    x = 198,024,495,744.02/501,185.44
  6. Step 6: Final answer
    x = 395,112.23

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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.