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Finding the Fourth Proportional to 377,482.88, 520,321.44 and 286,543.04

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Solution

The fourth proportional to 377,482.88, 520,321.44 and 286,543.04 is: 394,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,482.88 : 520,321.44 = 286,543.04 : x
  2. Step 2: Convert to fraction form
    377,482.88/520,321.44 = 286,543.04/x
  3. Step 3: Cross multiply
    377,482.88x = 520,321.44 × 286,543.04
  4. Step 4: Simplify right side
    377,482.88x = 149,094,487,194.78
  5. Step 5: Solve for x
    x = 149,094,487,194.78/377,482.88
  6. Step 6: Final answer
    x = 394,970.20

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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.