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Finding the Fourth Proportional to 501,466.65, 691,855.67 and 286,454.49

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Solution

The fourth proportional to 501,466.65, 691,855.67 and 286,454.49 is: 395,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,466.65 : 691,855.67 = 286,454.49 : x
  2. Step 2: Convert to fraction form
    501,466.65/691,855.67 = 286,454.49/x
  3. Step 3: Cross multiply
    501,466.65x = 691,855.67 × 286,454.49
  4. Step 4: Simplify right side
    501,466.65x = 198,185,161,671.19
  5. Step 5: Solve for x
    x = 198,185,161,671.19/501,466.65
  6. Step 6: Final answer
    x = 395,211.05

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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.