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Finding the Fourth Proportional to 387,690.26, 581,458.72 and 368,465.24

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Solution

The fourth proportional to 387,690.26, 581,458.72 and 368,465.24 is: 552,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,690.26 : 581,458.72 = 368,465.24 : x
  2. Step 2: Convert to fraction form
    387,690.26/581,458.72 = 368,465.24/x
  3. Step 3: Cross multiply
    387,690.26x = 581,458.72 × 368,465.24
  4. Step 4: Simplify right side
    387,690.26x = 214,247,329,650.28
  5. Step 5: Solve for x
    x = 214,247,329,650.28/387,690.26
  6. Step 6: Final answer
    x = 552,625.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.